{"id":36265,"date":"2025-05-09T03:36:17","date_gmt":"2025-05-08T19:36:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/36265.html"},"modified":"2025-05-09T03:36:17","modified_gmt":"2025-05-08T19:36:17","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3linux%e7%b3%bb%e7%bb%9f-%e8%bf%9b%e7%a8%8b%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/36265.html","title":{"rendered":"\u6df1\u5165\u4e86\u89e3linux\u7cfb\u7edf\u2014\u2014 \u8fdb\u7a0b\u63a7\u5236"},"content":{"rendered":"

\u8fdb\u7a0b\u521b\u5efa<\/h2>\n

fork\u51fd\u6570<\/h3>\n

\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d，\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7fork\u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b；<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u8fd9\u662f\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528，\u521b\u5efa\u5b50\u8fdb\u7a0b\u6210\u529f\u65f6，\u8fd4\u56de0\u7ed9\u5b50\u8fdb\u7a0b，\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684pid\u7ed9\u7236\u8fdb\u7a0b；\u521b\u5efa\u5b50\u8fdb\u7a0b\u5931\u8d25\u5219\u8fd4\u56de-1\u7ed9\u7236\u8fdb\u7a0b\u3002<\/p>\n

\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u8fd4\u56de\u503c\u6765\u5bf9\u7236\u5b50\u8fdb\u7a0b\u8fdb\u884c\u5206\u6d41：<\/p>\n

#<\/span>include<\/span> <stdio.h><\/span><\/span>
\n#<\/span>include<\/span> <unistd.h><\/span><\/span>
\nint<\/span> main<\/span>(<\/span>)<\/span>
\n{<\/span>
\n int<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
\n if<\/span>(<\/span>id <<\/span> 0<\/span>)<\/span>{<\/span>
\n \/\/\u521b\u5efa\u5b50\u8fdb\u7a0b\u5931\u8d25<\/span>
\n perror<\/span>(<\/span>"fork"<\/span>)<\/span>;<\/span>
\n return<\/span> 1<\/span>;<\/span>
\n }<\/span>
\n else<\/span> if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
\n \/\/\u5b50\u8fdb\u7a0b<\/span>
\n printf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span>
\n else<\/span>{<\/span>
\n \/\/\u7236\u8fdb\u7a0b<\/span>
\n printf<\/span>(<\/span>"\u7236\u8fdb\u7a0b, pid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span>
\nreturn<\/span> 0<\/span>;<\/span>
\n}<\/span><\/p>\n

\u4f7f\u7528fork\u51fd\u6570\u521b\u5efa\u5b50\u8fdb\u7a0b，\u8fd9\u91cc\u7b80\u5355\u590d\u4e60\u4e00\u4e0b\u5c31OK\u4e86；<\/p>\n

\u6211\u4eec\u6765\u770b\u901a\u8fc7fork\u521b\u5efa\u5b50\u8fdb\u7a0b，\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u505a\u4e86\u4ec0\u4e48：<\/p>\n

  • \u9996\u5148\u5c31\u662f\u5206\u914d\u65b0\u7684\u5185\u5b58\u5757\u548c\u5185\u6838\u6570\u636e\u7ed3\u6784\u7ed9\u5b50\u8fdb\u7a0b<\/li>\n
  • \u7136\u540e\u5c31\u662f\u5c06\u7236\u8fdb\u7a0b\u90e8\u5206\u6570\u636e\u7ed3\u6784\u5185\u5bb9\u62f7\u8d1d\u7ed9\u5b50\u8fdb\u7a0b<\/li>\n
  • \u5c06\u5b50\u8fdb\u7a0b\u6dfb\u52a0\u5230\u7cfb\u7edf\u8fdb\u7a0b\u5217\u8868\u5f53\u4e2d<\/li>\n
  • fork\u8fd4\u56de，\u8c03\u5ea6\u5668\u5f00\u59cb\u8c03\u5ea6<\/li>\n

    \u8fd9\u91ccfork\u4e4b\u524d\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u72ec\u7acb\u6267\u884c，fork\u521b\u5efa\u5b50\u8fdb\u7a0b\u4e4b\u540e，\u7236\u5b50\u8fdb\u7a0b\u4e24\u4e2a\u6267\u884c\u6d41\u5c31\u5206\u522b\u6267\u884c\u3002<\/p>\n

    \u5199\u65f6\u62f7\u8d1d<\/h3>\n

    \u6211\u4eec\u77e5\u9053，\u5f53\u521b\u5efa\u5b50\u8fdb\u7a0b\u4e4b\u540e，\u7236\u5b50\u8fdb\u7a0b\u7684\u4ee3\u7801\u548c\u6570\u636e\u662f\u5171\u4eab\u7684，\u800c\u5f53\u6709\u4e00\u4e2a\u8fdb\u7a0b(\u7236\u8fdb\u7a0b\/\u5b50\u8fdb\u7a0b)\u8981\u8fdb\u884c\u6570\u636e\u4fee\u6539\u65f6，\u6211\u4eec\u7684\u64cd\u4f5c\u7cfb\u7edf\u5c31\u4f1a\u8fdb\u884c\u5199\u65f6\u62f7\u8d1d，\u91cd\u65b0\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4\u7ed9\u8fd9\u4e2a\u8fdb\u7a0b，\u7136\u540e\u4fee\u6539\u5b83\u7684\u9875\u8868（\u865a\u62df\u5730\u5740\u548c\u7269\u7406\u5730\u5740）\u7684\u5bf9\u5e94\u5173\u7cfb；\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u5199\u65f6\u62f7\u8d1d\u3002<\/p>\n

    \u90a3\u64cd\u4f5c\u7cfb\u7edf\u662f\u5982\u4f55\u77e5\u9053\u4e00\u6bb5\u4ee3\u7801\u548c\u6570\u636e\u73b0\u5728\u662f\u5171\u4eab\u7684\u5462？<\/p>\n

    \u8fd9\u4e2a\u95ee\u9898\u5c31\u6bd4\u8f83\u7b80\u5355\u4e86，\u5728\u6211\u4eec\u7684\u9875\u8868\u4e2d\u4e0d\u4ec5\u5b58\u653e\u4e86\u865a\u62df\u5730\u5740\u548c\u7269\u7406\u5730\u5740\u7684\u5bf9\u5e94\u5173\u7cfb，\u8fd8\u5b58\u5728\u5bf9\u8fd9\u4e00\u5757\u5185\u5b58\u7684\u6743\u9650（r\u3001w\u7b49）<\/p>\n

    \u5f53\u6211\u4eec\u901a\u8fc7fork\u521b\u5efa\u5b50\u8fdb\u7a0b\u4e4b\u540e，\u6211\u4eec\u7684\u7236\u5b50\u8fdb\u7a0b\u5171\u4eab\u4ee3\u7801\u548c\u6570\u636e，\u64cd\u4f5c\u7cfb\u7edf\u5c31\u4f1a\u5c06\u6211\u4eec\u7236\u5b50\u8fdb\u7a0b\u5bf9\u4ee3\u7801\u548c\u6570\u636e\u7684\u6743\u9650\u4fee\u6539\u4e3a\u53ea\u8bfb；<\/p>\n

    \u5f53\u6211\u4eec\u5e94\u8be5\u8fdb\u7a0b\u60f3\u8981\u4fee\u6539\u6570\u636e\u65f6，\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u9875\u8868\u53d1\u73b0\u8fdb\u7a0b\u5bf9\u6570\u636e\u7684\u6743\u9650\u4e3a\u53ea\u8bfb，\u64cd\u4f5c\u7cfb\u7edf\u5c31\u4f1a\u62a5\u9519，\u7136\u540e\u7ed9\u6211\u4eec\u8fdb\u7a0b\u91cd\u65b0\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4，\u7136\u540e\u5c06\u6570\u636e\u62f7\u8d1d\u8fc7\u6765，\u518d\u4fee\u6539\u6211\u4eec\u8fdb\u7a0b\u9875\u8868\u7684\u5730\u5740\u6620\u5c04\u5173\u7cfb；<\/p>\n

    \u800c\u5199\u65f6\u62f7\u8d1d\u4e4b\u540e，\u64cd\u4f5c\u7cfb\u7edf\u5c31\u4f1a\u5c06\u6211\u4eec\u7236\u5b50\u8fdb\u7a0b\u5bf9\u4ee3\u7801\u548c\u6570\u636e\u7684\u6743\u9650\u4fee\u6539\u4e3a\u53ef\u8bfb\u53ef\u5199\u3002\u8fd9\u6837\u6211\u4eec\u8fdb\u7a0b\u4e4b\u95f4\u5c31\u4e0d\u4f1a\u76f8\u4e92\u5f71\u54cd\u4e86\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    \u5199\u65f6\u62f7\u8d1d：\u662f\u4e00\u79cd\u5ef6\u65f6\u7533\u8bf7\u6280\u672f，\u53ef\u4ee5\u63d0\u9ad8\u6574\u673a\u5185\u5b58\u7684\u4f7f\u7528\u7387<\/p>\n

    fork\u51fd\u6570\u7684\u5e38\u89c4\u4f7f\u7528<\/h3>\n

    \u6211\u4eec\u4e4b\u524d\u4f7f\u7528fork\u6765\u521b\u5efa\u5b50\u8fdb\u7a0b，\u7136\u540e\u8ba9\u7236\u5b50\u8fdb\u7a0b\u5206\u6d41\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801，\u8fd9\u662ffork\u5e38\u89c4\u4f7f\u7528\u7684\u4e00\u79cd，\u4e5f\u5c31\u662f：\u7236\u5b50\u8fdb\u7a0b\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u6bb5\u3002<\/p>\n

    \u9664\u6b64\u4e4b\u5916\u5462，\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7fork\u521b\u5efa\u8fdb\u7a0b，\u7136\u540e\u901a\u8fc7\u8c03\u7528exec\u7cfb\u5217\u51fd\u6570，\u8ba9\u5b50\u8fdb\u7a0b\u6267\u884c\u4e0d\u540c\u7684\u7a0b\u5e8f\u3002<\/p>\n

      \n
    • \u521b\u5efa\u5b50\u8fdb\u7a0b，\u8ba9\u5b50\u8fdb\u7a0b\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u6bb5<\/li>\n
    • \u521b\u5efa\u5b50\u8fdb\u7a0b，\u8ba9\u5b50\u8fdb\u7a0b\u6267\u884c\u4e0d\u540c\u7684\u7a0b\u5e8f<\/li>\n<\/ul>\n

      fork\u5931\u8d25\u7684\u539f\u56e0<\/h3>\n

      \u6211\u4eec\u77e5\u9053fork\u521b\u5efa\u5b50\u8fdb\u7a0b\u6210\u529f，\u8fd4\u56de0\u7ed9\u5b50\u8fdb\u7a0b，\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684pid\u7ed9\u7236\u8fdb\u7a0b；\u800c\u521b\u5efa\u5b50\u8fdb\u7a0b\u5931\u8d25\u5219\u8fd4\u56de-1\u7ed9\u7236\u8fdb\u7a0b\u3002<\/p>\n

      \u90a3fork\u4e3a\u4ec0\u4e48\u4f1a\u5931\u8d25\u5462？<\/p>\n

      \u7b80\u5355\u6765\u8bf4\u5c31\u662f：<\/p>\n

    • \u7cfb\u7edf\u4e2d\u5b58\u5728\u592a\u591a\u7684\u8fdb\u7a0b<\/li>\n
    • \u5b9e\u9645\u7528\u6237\u7684\u8fdb\u7a0b\u6570\u91cf\u8d85\u8fc7\u4e86\u9650\u5236<\/li>\n

      \u8fdb\u7a0b\u7ec8\u6b62<\/h2>\n

      \u8fdb\u7a0b\u9000\u51fa<\/h3>\n

      \u5728\u6211\u4eec\u6267\u884c\u4e00\u4e2a\u7a0b\u5e8f\u65f6，\u8fd9\u4e2a\u7a0b\u5e8f\u53ef\u80fd\u4ee3\u7801\u8fd0\u884c\u5b8c\u4e86，\u4e14\u7ed3\u679c\u7b26\u5408\u6211\u4eec\u7684\u9884\u671f；\u4e5f\u53ef\u80fd\u4ee3\u7801\u8fd0\u884c\u5b8c\u4e86，\u4f46\u662f\u7ed3\u679c\u4e0d\u7b26\u5408\u6211\u4eec\u7684\u9884\u671f；\u5f53\u7136\u4e5f\u53ef\u80fd\u6211\u4eec\u7684\u7a0b\u5e8f\u4ee3\u7801\u6839\u672c\u5c31\u6ca1\u6709\u8fd0\u884c\u5b8c，\u800c\u662f\u4e2d\u9014\u9000\u51fa\u4e86\u3002<\/p>\n

      \u6240\u4ee5\u8fdb\u7a0b\u9000\u51fa，\u4e5f\u5c31\u5b58\u5728\u4e09\u79cd\u53ef\u80fd：<\/p>\n

        \n
      • \u4ee3\u7801\u8fd0\u884c\u5b8c，\u7ed3\u679c\u6b63\u786e；<\/li>\n
      • \u4ee3\u7801\u8fd0\u884c\u5b8c，\u7ed3\u679c\u4e0d\u6b63\u786e；<\/li>\n
      • \u4ee3\u7801\u5f02\u5e38\u7ec8\u6b62；<\/li>\n<\/ul>\n

        \u8fdb\u7a0b\u5e38\u89c1\u9000\u51fa\u65b9\u6cd5<\/h3>\n

        \u90a3\u6211\u4eec\u77e5\u9053\u4e86\u8fdb\u7a0b\u9000\u51fa\u6709\u4e09\u79cd\u53ef\u80fd；\u90a3\u6211\u4eec\u8fdb\u7a0b\u5982\u4f55\u9000\u51fa\u5462？<\/p>\n

      • \u4ecemain\u51fd\u6570\u8fd4\u56de<\/li>\n
      • exit\u51fd\u6570<\/li>\n
      • _exit<\/li>\n

        \u5f53\u7136\u6211\u4eec\u4f7f\u7528Ctrl + C\u6740\u6b7b\u4e00\u4e2a\u8fdb\u7a0b\u5c5e\u4e8e\u8fdb\u7a0b\u7684\u5f02\u5e38\u9000\u51fa；\u901a\u8fc7\u4fe1\u53f7\u8ba9\u8fdb\u7a0b\u7ec8\u6b62\u4e5f\u5c5e\u4e8e\u5f02\u5e38\u9000\u51fa\u3002<\/p>\n

        exit\u51fd\u6570<\/p>\n

        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \u901a\u8fc7\u67e5\u770b\u624b\u518c，\u53ef\u4ee5\u53d1\u73b0exit\u51fd\u6570\u662f3\u53f7\u624b\u518c，\u4e5f\u5c31\u662fC\u6807\u51c6\u5e93\u7684\u5e93\u51fd\u6570；<\/p>\n

        \u90a3\u5b83\u7684\u4f5c\u7528\u5c31\u662f，\u9000\u51fa\u4e00\u4e2a\u8fdb\u7a0b，\u7136\u540e\u5e76\u8fd4\u56de\u9000\u51fa\u7801；\u50cf\u6211\u4eec\u4e4b\u524d\u5728C\u4e2d\u6267\u884c\u7684exit(1)\u5c31\u662f\u9000\u51fa\u7a0b\u5e8f\u5e76\u8fd4\u56de1\u3002<\/p>\n

        _exit\u7cfb\u7edf\u8c03\u7528<\/p>\n

        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \u901a\u8fc7\u67e5\u770b\u624b\u518c，\u6211\u4eec\u53d1\u73b0_exit\u4f4d\u4e8e2\u53f7\u624b\u518c，\u4e5f\u5c31\u662f\u7cfb\u7edf\u8c03\u7528；<\/p>\n

        \u5b83\u7684\u4f5c\u7528\u4e5f\u662f\u9000\u51fa\u8fdb\u7a0b，\u5e76\u4e14\u8fd4\u56de\u9000\u51fa\u7801\u3002<\/p>\n

        exit\u548c_exit\u7684\u533a\u522b<\/p>\n

        \u90a3\u8fd9\u4e24\u4e2a\u51fd\u6570\u90fd\u662f\u9000\u51fa\u4e00\u4e2a\u8fdb\u7a0b，\u90a3\u6709\u4ec0\u4e48\u4e0d\u540c\u4e4b\u5904\u5462？<\/p>\n

        \u9996\u5148，_exit\u662f\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u8fdb\u7a0b\u9000\u51fa\u7684\u51fd\u6570，\u800cexit\u662f\u5e93\u51fd\u6570，exit\u53ef\u4ee5\u8bf4\u662f\u5bf9_exit\u7684\u5c01\u88c5，\u5728\u8fdb\u7a0b\u9000\u51fa\u4e4b\u524d\u505a\u4e86\u4e00\u4e9b\u5176\u4ed6\u7684\u4e8b\u60c5\u3002<\/p>\n

        \u8fd9\u91cc\u76f4\u767d\u4e00\u70b9，\u76f4\u63a5\u8bf4\u4e86：exit\u5e95\u5c42\u4e5f\u4f1a\u8c03\u7528_exit\u51fd\u6570，\u4f46\u662f\u5728\u8c03\u7528_exit\u51fd\u6570\u4e4b\u524d，\u8fd8\u505a\u4e86：<\/p>\n

          \n
        • \u6267\u884c\u7528\u6237\u901a\u8fc7atexit\/on_exit\u5b9a\u4e49\u7684\u6e05\u7406\u51fd\u6570；<\/li>\n
        • \u5173\u95ed\u6240\u6709\u6253\u5f00\u7684\u6d41，\u6240\u6709\u7f13\u5b58\u6570\u636e\u5747\u88ab\u5199\u5165\u3002（\u7b80\u5355\u7406\u89e3\u5c31\u662f\u5237\u65b0\u7f13\u51b2\u533a）<\/li>\n
        • \u7136\u540e\u518d\u8c03\u7528_exit\u3002<\/li>\n<\/ul>\n

          \u8fd9\u91cc\u6211\u4eec\u4e0d\u61c2atexit\/on_exit\u8fd9\u4e9b，\u4f46\u662f\u6211\u4eec\u597d\u50cf\u77e5\u9053\u7f13\u51b2\u533a，\u73b0\u5728\u6765\u770b\u4e0b\u9762\u4ee3\u7801，\u901a\u8fc7exit\u548c_exit\u9000\u51fa\u7684\u533a\u522b：<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
          \nint<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \nprintf<\/span>(<\/span>"hello linux"<\/span>)<\/span>;<\/span>
          \nexit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n\/\/_exit(1);<\/span>
          \nreturn<\/span> 0<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \u6211\u4eec\u77e5\u9053，\u5728\u8f93\u51fa\u65f6，\u7f13\u51b2\u533a\u662f\u6309\u884c\u5237\u65b0\u7684，\u8fd9\u91cc\u6211\u4eec\u8f93\u51fahello linux\u6ca1\u6709\u6362\u884c，\u6570\u636e\u5c31\u5728\u7f13\u51b2\u533a\u5f53\u4e2d；<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          return\u9000\u51fa\u548cexit\u9000\u51fa\u7684\u533a\u522b<\/p>\n

          \u6211\u4eec\u77e5\u9053\u5728main\u51fd\u6570\u4e2d，return\u4e5f\u662f\u9000\u51fa\u8fdb\u7a0b，exit\u4e5f\u53ef\u4ee5\u9000\u51fa\u8fdb\u7a0b，\u90a3\u5b83\u4eec\u6709\u4ec0\u4e48\u533a\u522b\u5462？<\/p>\n

          \u5728main\u51fd\u6570\u4e2d，\u6ca1\u6709\u4ec0\u4e48\u533a\u522b，\u90fd\u662f\u8fdb\u7a0b\u9000\u51fa；<\/p>\n

          \u5728\u5176\u4ed6\u51fd\u6570\u4e2d，return\u662f\u9000\u51fa\u5f53\u524d\u51fd\u6570，\u800cexit\u662f\u76f4\u63a5\u9000\u51fa\u8fdb\u7a0b\u3002<\/p>\n

          \u9000\u51fa\u7801<\/h3>\n

          \u9000\u51fa\u7801，\u5b83\u53ef\u4ee5\u544a\u8bc9\u6211\u4eec\u6700\u540e\u4e00\u6b21\u6267\u884c\u7684\u547d\u4ee4(\u7a0b\u5e8f)\u7684\u72b6\u6001；<\/p>\n

          \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528echo $?\u6765\u67e5\u770b\u6700\u8fd1\u4e00\u6b21\u7a0b\u5e8f\u9000\u51fa\u7684\u9000\u51fa\u7801：<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \nint<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \nreturn<\/span> 1<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u5f53\u7a0b\u5e8f\u9000\u51fa\u65f6，\u9000\u51fa\u7801\u4e3a0\u901a\u5e38\u8868\u793a\u7a0b\u5e8f\u6267\u884c\u6210\u529f，\u6ca1\u6709\u95ee\u9898；<\/p>\n

          \u5982\u679c\u9000\u51fa\u7801\u4e0d\u662f0\u5c31\u8ba4\u4e3a\u7a0b\u5e8f\u8fd0\u884c\u4e0d\u6210\u529f\u3002<\/p>\n

          \u8fd9\u91cc\u4e5f\u8981\u8bb0\u4f4f\u4e00\u4e2a\u70b9：\u5f53\u7a0b\u5e8f\u5f02\u5e38\u7ec8\u6b62\u65f6，\u7a0b\u5e8f\u7684\u9000\u51fa\u7801\u662f\u6ca1\u6709\u610f\u4e49\u7684\u3002<\/p>\n

          \u8fdb\u7a0b\u7b49\u5f85<\/h2>\n

          \u4e3a\u4ec0\u4e48\u8981\u7b49\u5f85<\/h3>\n
        • \u5728\u8fdb\u7a0b\u72b6\u6001\u4e2d，\u6211\u4eec\u4e86\u89e3\u5230\u4e86\u50f5\u5c38\u8fdb\u7a0b，\u4f46\u662f\u6211\u4eec\u53ea\u662f\u77e5\u9053\u5b50\u8fdb\u7a0b\u6bd4\u7236\u8fdb\u7a0b\u5148\u9000\u51fa，\u4f1a\u9020\u6210\u5b50\u8fdb\u7a0b\u50f5\u5c38\u72b6\u6001，\u4f46\u662f\u6211\u4eec\u5e76\u4e0d\u77e5\u9053\u5982\u4f55\u53bb\u89e3\u51b3\u50f5\u5c38\u8fdb\u7a0b；（\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u8ba9\u7236\u8fdb\u7a0b\u7b49\u5f85，\u53bb\u89e3\u51b3\u50f5\u5c38\u8fdb\u7a0b\u95ee\u9898，\u4e14\u83b7\u53d6\u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u7684\u9000\u51fa\u4fe1\u606f）<\/li>\n
        • \u6b64\u5916，\u5f53\u4e00\u4e2a\u8fdb\u7a0b\u8fdb\u5165\u50f5\u5c38\u72b6\u6001，\u6211\u4eec\u662f\u65e0\u6cd5\u6740\u6b7b\u4e00\u4e2a\u50f5\u5c38\u8fdb\u7a0b\u7684；\u56e0\u4e3a\u8fd9\u4e2a\u8fdb\u7a0b\u5df2\u7ecf\u9000\u51fa\u4e86，\u53ea\u4e0d\u8fc7\u4fdd\u7559\u4e86task_struct\u7b49\u5f85\u7236\u8fdb\u7a0b\u83b7\u53d6\u9000\u51fa\u4fe1\u606f\u3002<\/li>\n
        • \u521b\u5efa\u5b50\u8fdb\u7a0b\u662f\u8ba9\u5b50\u8fdb\u7a0b\u53bb\u6267\u884c\u7236\u8fdb\u7a0b\u6d3e\u7ed9\u5b50\u8fdb\u7a0b\u7684\u4efb\u52a1，\u5728\u5b50\u8fdb\u7a0b\u9000\u51fa\u540e，\u65e0\u8bba\u662f\u6b63\u5e38\u9000\u51fa\u8fd8\u662f\u5f02\u5e38\u9000\u51fa，\u90fd\u8981\u8ba9\u7236\u8fdb\u7a0b\u77e5\u9053\u5b50\u8fdb\u7a0b\u7684\u8fd0\u884c\u7ed3\u679c\u3002<\/li>\n

          \u6240\u4ee5\u6211\u4eec\u8981\u8ba9\u7236\u8fdb\u7a0b\u901a\u8fc7\u8fdb\u7a0b\u7b49\u5f85，\u6765\u56de\u6536\u5b50\u8fdb\u7a0b\u7684\u8d44\u6e90，\u83b7\u53d6\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f\u3002<\/p>\n

          \u5982\u4f55\u7b49\u5f85<\/h3>\n

          \u90a3\u6211\u4eec\u5982\u4f55\u8ba9\u7236\u8fdb\u7a0b\u7b49\u5f85\u5462？<\/p>\n

          \u901a\u8fc7\u7cfb\u7edf\u8c03\u7528wait\u548cwaitpid；<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          wait\u65b9\u6cd5<\/h4>\n

          wait\u53ea\u6709\u4e00\u4e2a\u53c2\u6570，\u8fd9\u4e2astatus\u662f\u4e00\u4e2a\u8f93\u51fa\u578b\u53c2\u6570，\u7b80\u5355\u6765\u8bf4\u5c31\u662f：\u6211\u4eec\u60f3\u8981\u8ba9\u7236\u8fdb\u7a0b\u83b7\u5f97\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f，\u5c31\u4f20\u9012\u4e00\u4e2aint* \u6307\u9488，\u8fd9\u6837\u5728\u51fd\u6570\u8c03\u7528\u7ed3\u675f\u540e，\u7236\u8fdb\u7a0b\u5c31\u62ff\u5230\u4e86\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f；（\u5982\u679c\u4e0d\u9700\u8981\u83b7\u53d6\u5b50\u8fdb\u7a0b\u9000\u51fa\u4fe1\u606f，\u53ef\u4ee5\u4f20NULL）\u3002<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span><\/p>\n

          int<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \nint<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
          \nif<\/span>(<\/span>id <<\/span> 0<\/span>)<\/span>
          \nreturn<\/span> 1<\/span>;<\/span>
          \nelse<\/span> if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
          \n\/\/\u5b50\u8fdb\u7a0b<\/span>
          \nint<\/span> cnt =<\/span> 3<\/span>;<\/span>
          \nwhile<\/span>(<\/span>cnt—<\/span>)<\/span>{<\/span>
          \nprintf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d, ppid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>,<\/span>getppid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
          \nsleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \nexit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \n\/\/\u7236\u8fdb\u7a0b<\/span>
          \nsleep<\/span>(<\/span>5<\/span>)<\/span>;<\/span>
          \nwait<\/span>(<\/span>NULL<\/span>)<\/span>;<\/span>
          \n while<\/span>(<\/span>1<\/span>)<\/span>{<\/span> }<\/span>
          \nreturn<\/span> 0<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \u770b\u4e0a\u8ff0\u4ee3\u7801，\u6211\u4eec\u8ba9\u5b50\u8fdb\u7a0b\u5faa\u73af\u8fdb\u884c\u4e09\u6b21，\u6bcf\u6b21\u6253\u5370\u4e00\u53e5\u8bdd，\u7136\u540esleep1\u79d2\u949f；\u5faa\u73af\u8fd0\u884c\u7ed3\u675f\u76f4\u63a5\u9000\u51fa；<\/p>\n

          \u7236\u8fdb\u7a0b\u5148seep5\u79d2\u949f，\u7136\u540e\u518d\u8fdb\u7a0b\u7b49\u5f85wait（\u8fd9\u91cc\u6211\u4eec\u5148\u4e0d\u83b7\u53d6\u5b50\u8fdb\u7a0b\u9000\u51fa\u4fe1\u606f，\u4f20NULL）\u3002<\/p>\n

          \u6211\u4eec\u9884\u671f\u7684\u7ed3\u679c\u662f：\u5b50\u8fdb\u7a0b\u8fd0\u884c\u4e09\u79d2，\u7136\u540e\u5b50\u8fdb\u7a0b\u9000\u51fa，\u800c\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u5148\u7761\u77205\u79d2，\u6240\u4ee5\u5b50\u8fdb\u7a0b\u6709\u4e24\u79d2\u662f\u5904\u4e8e\u50f5\u5c38\u72b6\u6001\u7684；\u5728\u7236\u8fdb\u7a0b\u7761\u7720\u7ed3\u675f\u65f6，\u8fdb\u5165\u7b49\u5f85，\u7136\u540e\u5b50\u8fdb\u7a0b\u7ed3\u675f\u50f5\u5c38\u72b6\u6001\u3002<\/p>\n

          \u8fd9\u91cc\u4e3a\u4e86\u65b9\u4fbf\u6211\u4eec\u67e5\u770b，\u7236\u8fdb\u7a0b\u7b49\u5230\u7ed3\u675f\u4e4b\u540e，\u6211\u4eec\u8ba9\u7236\u8fdb\u7a0b\u8fdb\u5165\u6b7b\u5faa\u73af\u3002<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u8fd9\u91cc\u5bf9\u4e8e\u8fd4\u56de\u503c，\u5982\u679cwait\u6267\u884c\u6210\u529f\u5219\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684pid\u7ed9\u7236\u8fdb\u7a0b，\u5931\u8d25\u5219\u8fd4\u56de-1\u7ed9\u7236\u8fdb\u7a0b\u3002<\/p>\n

          waitpid\u65b9\u6cd5<\/h4>\n

          waitpid\u8fdb\u7a0b\u7b49\u5f85\u7684\u65b9\u6cd5，\u4e0ewait\u4e0d\u540c\u7684\u662f：waitpid\u591a\u4e86\u4e24\u4e2a\u53c2\u6570：pid\u548coption；<\/p>\n

          \u9996\u5148\u662fpid<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u8fd9\u91cc\u6211\u4eec\u4e3b\u8981\u5c31\u770b-1\u548c<0\u7684\u90e8\u5206：<\/p>\n

          -1：\u5f53\u6211\u4eec\u4f20-1\u65f6，\u5c31\u8868\u793a\u6211\u4eec\u5f53\u524d\u7236\u8fdb\u7a0b\u8981\u7b49\u5f85\u4efb\u610f\u4e2a\u5b50\u8fdb\u7a0b\u7ed3\u675f\u3002<\/p>\n

          >0：\u6211\u4eec\u7236\u8fdb\u7a0b\u7b49\u5f85\u67d0\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u65f6，\u6211\u4eec\u53ef\u4ee5\u4f20\u5b50\u8fdb\u7a0b\u7684pid，\u8ba9\u7236\u8fdb\u7a0b\u7b49\u5f85\u67d0\u4e00\u4e2a\u5b50\u8fdb\u7a0b<\/p>\n

          \u73b0\u5728\u6765\u770bwaitpid\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570：options<\/p>\n

          options\u53c2\u6570\u9ed8\u8ba4\u4e3a0，\u5b83\u8868\u793a\u963b\u585e\u7b49\u5f85；<\/p>\n

          \u4ec0\u4e48\u610f\u601d\u5462？\u7b80\u7b54\u6765\u8bf4，\u5c31\u662f\u7236\u8fdb\u7a0b\u5728\u8c03\u7528waitpid\u65f6，\u5982\u679c\u8981\u7b49\u5f85\u5728\u5b50\u8fdb\u7a0b\u8fd8\u6ca1\u6709\u7ed3\u675f，\u90a3\u7236\u8fdb\u7a0b\u5c31\u5728waitpid\u4e2d\u963b\u585e\u6389，\u76f4\u5230\u5b50\u8fdb\u7a0b\u9000\u51fa，waitpid\u518d\u8fd4\u56de\u3002<\/p>\n

          \u800c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f20WNOHANG，\u5f53\u6211\u4eec\u4f20WNOHANG\u65f6，\u5982\u679c\u8981\u7b49\u5f85\u7684\u5b50\u8fdb\u7a0b\u8fd8\u6ca1\u6709\u7ed3\u675f，waitpid\u5c31\u76f4\u63a50，\u6211\u4eec\u7684\u7236\u8fdb\u7a0b\u4e0d\u4f1a\u5728waitpid\u4e2d\u963b\u585e\u6389；\u5982\u679c\u5b50\u8fdb\u7a0b\u7ed3\u675f，\u90a3\u5c31\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684pid\u3002<\/p>\n

          \u8fd9\u91cc\u4e3e\u4e2a\u4f8b\u5b50：<\/p>\n

          \u6700\u8fd1\u5468\u672b，\u4f60\u8981\u548c\u5973\u670b\u53cb\u51fa\u53bb\u65c5\u6e38，\u73b0\u5728\u8981\u51fa\u53d1\u4e86，\u4f60\u5df2\u7ecf\u51c6\u5907\u597d\u4e86，\u4f60\u6765\u5230\u4e86\u5973\u670b\u53cb\u7684\u5bbf\u820d\u697c\u4e0b，\u8981\u7b49\u4f60\u5973\u670b\u53cb\u4e0b\u697c；<\/p>\n

          \u4f60\u7ed9\u5979\u6253\u4e86\u7535\u8bdd\u8fc7\u53bb，\u8be2\u95ee\u5979\u597d\u4e86\u6ca1\u6709，\u5979\u8bf4\u6ca1\u6709，\u7136\u540e\u4f60\u5c31\u6302\u4e86；\u62ff\u8d77\u624b\u673a\u73a9\u8d77\u6765\u4e86\u6e38\u620f\u4e86；\u73a9\u4e86\u4e00\u5c40\u6e38\u620f，\u4f60\u53c8\u7ed9\u4f60\u5973\u670b\u53cb\u6253\u4e86\u8fc7\u53bb，\u7136\u540e\u5979\u8bf4\u8fd8\u6ca1\u6709，\u7136\u540e\u4f60\u53c8\u6302\u4e86，\u53c8\u5f00\u4e86\u4e00\u5c40\u6e38\u620f\u3002\u6253\u5b8c\u53c8\u7ed9\u4f60\u5973\u670b\u53cb\u6253\u53bb\u4e86\u7535\u8bdd\u8be2\u95ee\u5979\u597d\u6ca1\u597d，\u5979\u662f\u5feb\u4e86\u9a6c\u4e0a，\u8bf4\u8ba9\u4f60\u4e0d\u7528\u6302\u7535\u8bdd，\u5979\u51c6\u5907\u597d\u4e86\u7ed9\u4f60\u8bf4\u3002<\/p>\n

          \u7136\u540e\u4f60\u6ca1\u6709\u6302\u7535\u8bdd，\u5c31\u62ff\u7740\u624b\u673a\u7b49\u5f85\u4f60\u5973\u670b\u53cb\u7ed9\u4f60\u8bf4\u5979\u51c6\u5907\u597d\u4e86\u3002<\/p>\n

          \u8fd9\u91cc\u4f60\u6253\u4e00\u6b21\u7535\u8bdd\u8be2\u95ee\u4f60\u5973\u670b\u53cb\u597d\u4e86\u6ca1\u6709，\u6ca1\u6709\u7136\u540e\u4f60\u5c31\u6302\u4e86\u7535\u8bdd；\u8fd9\u672c\u8d28\u4e0a\u4e0d\u5c31\u662f\u4e00\u6b21\u975e\u963b\u585e\u7b49\u5f85\u5417\u3002（\u4f60\u5973\u670b\u53cb\u6ca1\u6709\u597d，\u7136\u540e\u4f60\u5c31\u6302\u4e86\u7535\u8bdd）<\/p>\n

          \u800c\u5f53\u4f60\u6253\u7535\u8bdd\u8be2\u95ee\u4f60\u5973\u670b\u53cb\u597d\u4e86\u6ca1\u6709，\u77e5\u9053\u4e86\u6ca1\u6709\u4f60\u5e76\u6ca1\u6709\u6302\u65ad\u7535\u8bdd，\u800c\u662f\u62ff\u7740\u624b\u673a\u7b49\u5f85\u4f60\u5973\u670b\u53cb\u51c6\u5907\u597d\u3002\u8fd9\u4e0d\u5c31\u662f\u4e00\u6b21\u963b\u585e\u7b49\u5f85\u5417\u3002<\/p>\n

          \u800c\u4f53\u73b0\u5230\u6211\u4eec\u7236\u8fdb\u7a0b\u7b49\u5f85\u4e0a\u9762\u5c31\u662f，\u7236\u8fdb\u7a0b\u8c03\u7528waitpid，\u5982\u679c\u5b50\u8fdb\u7a0b\u6ca1\u6709\u7ed3\u675f，waitpid\u6ca1\u6709\u8fd4\u56de，\u800c\u662f\u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa\u540e\u518d\u8fd4\u56de，\u518d\u6b21\u671f\u95f4\u7236\u8fdb\u7a0b\u5c31\u963b\u585e\u5728\u4e86waitpid\u4e2d；\u8fd9\u4e0d\u5c31\u662f\u963b\u585e\u7b49\u5f85\u5417\u3002<\/p>\n

          \u800c\u7236\u8fdb\u7a0b\u8c03\u7528waitpid，\u5982\u679c\u5b50\u8fdb\u7a0b\u6ca1\u6709\u7ed3\u675f，\u51fd\u6570\u76f4\u63a5\u8fd4\u56de0，\u7236\u8fdb\u7a0b\u53ef\u4ee5\u53bb\u505a\u81ea\u5df1\u7684\u4e8b\u60c5，\u8fd9\u4e0d\u5c31\u662f\u975e\u963b\u585e\u7b49\u5f85\u5417\u3002<\/p>\n

          \u963b\u585e\u7b49\u5f85\u8fd9\u91cc\u5c31\u4e0d\u6f14\u793a\u4e86，\u73b0\u5728\u770b\u4e00\u4e0b\u975e\u963b\u585e\u7b49\u5f85：<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
          \nint<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \n int<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
          \n if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
          \n \/\/\u5b50\u8fdb\u7a0b<\/span>
          \n int<\/span> cnt =<\/span> 3<\/span>;<\/span>
          \n while<\/span>(<\/span>cnt—<\/span>)<\/span>{<\/span>
          \n printf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d, ppid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>,<\/span>getppid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
          \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n exit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n \/\/\u7236\u8fdb\u7a0b<\/span>
          \n printf<\/span>(<\/span>"wait begin\\\\n"<\/span>)<\/span>;<\/span>
          \n while<\/span>(<\/span>waitpid<\/span>(<\/span>–<\/span>1<\/span>,<\/span>NULL<\/span>,<\/span>WNOHANG)<\/span> ==<\/span> 0<\/span>)<\/span>
          \n {<\/span>
          \n printf<\/span>(<\/span>"\u7236\u8fdb\u7a0b: pid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
          \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n printf<\/span>(<\/span>"wait end\\\\n"<\/span>)<\/span>;<\/span>
          \n sleep<\/span>(<\/span>10<\/span>)<\/span>;<\/span>
          \n return<\/span> 0<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u4e00\u822c\u60c5\u51b5\u4e0b，\u6211\u4eec\u4f7f\u7528\u975e\u963b\u585e\u8c03\u7528\u8981\u8f6e\u5faa\u8c03\u7528waitpid，\u518d\u7b49\u5f85\u8fc7\u7a0b\u4e2d，\u7236\u8fdb\u7a0b\u53ef\u4ee5\u6267\u884c\u81ea\u5df1\u7684\u4ee3\u7801（\u6bd4\u5982\u8981\u5b8c\u6210\u4e00\u4e2a\u6216\u591a\u4e2a\u4efb\u52a1）\u3002<\/p>\n

          \u83b7\u53d6\u5b50\u8fdb\u7a0b\u7684status<\/h3>\n

          \u5728\u4e0a\u8ff0\u4e2d，\u6211\u4eec\u8fdb\u7a0b\u7b49\u5f85\u89e3\u51b3\u4e86\u50f5\u5c38\u8fdb\u7a0b\u7684\u95ee\u9898；\u4f46\u662f\u6211\u4eec\u8fdb\u7a0b\u7b49\u5f85\u4e0d\u6b62\u53ef\u4ee5\u89e3\u51b3\u5b50\u8fdb\u7a0b\u7684\u50f5\u5c38\u95ee\u9898，\u8fd8\u53ef\u4ee5\u8ba9\u7236\u8fdb\u7a0b\u83b7\u53d6\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f\u3002<\/p>\n

          \u5728\u4e0a\u8ff0\u4e2d，\u6211\u4eec\u6ca1\u6709\u83b7\u53d6\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f，\u6240\u4ee5\u4f20\u7684\u53c2\u6570\u662fNULL，\u73b0\u5728\u6211\u4eec\u6765\u83b7\u53d6\u4e00\u4e0b\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u606f\u3002<\/p>\n

          \u6211\u4eec\u5148\u6765\u770b\u4ee5\u4e0b\u4ee3\u7801：<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
          \nint<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \nint<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
          \nif<\/span>(<\/span>id <<\/span> 0<\/span>)<\/span>
          \nreturn<\/span> 1<\/span>;<\/span>
          \nelse<\/span> if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
          \n\/\/\u5b50\u8fdb\u7a0b<\/span>
          \nprintf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d, ppid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>,<\/span>getppid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
          \nexit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \n\/\/\u7236\u8fdb\u7a0b<\/span>
          \n int<\/span> status =<\/span> 0<\/span>;<\/span>
          \n wait<\/span>(<\/span>&<\/span>status)<\/span>;<\/span>
          \n \/\/\u963b\u585e\u7b49\u5f85<\/span>
          \n \/\/waitpid(-1,&status,0);<\/span>
          \n printf<\/span>(<\/span>"child status : %d\\\\n"<\/span>,<\/span>status)<\/span>;<\/span>
          \nreturn<\/span> 0<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u6211\u4eec\u53d1\u73b0，\u6211\u4eec\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u7801\u662f1，\u4f46\u662f\u6211\u4eec\u62ff\u5230\u7684status\u662f256；\u8fd9\u662f\u4e3a\u4f55？<\/p>\n

          \u8fd9\u662f\u56e0\u4e3a，\u867d\u7136status\u662f\u7c7b\u578b\u662fint；\u4f46\u662f\u6211\u4eec\u4e0d\u80fd\u5c06\u5b83\u5f53\u505a\u4e00\u4e2a\u6574\u5f62\u6765\u770b\u5f85，\u800c\u662f\u5f53\u505a\u4e00\u4e2a\u4f4d\u56fe；<\/p>\n

          int\u7c7b\u578b4\u5b57\u8282，\u4e5f\u5c31\u662f32\u4e2abit\u4f4d；\u6211\u4eec\u8981\u5c06\u8fd932\u4e2abit\u4f4d\u5212\u5206\u6210\u4ee5\u4e0b\u4e09\u90e8\u5206：<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u5176\u4e2d，\u9ad816\u4f4d\u6ca1\u6709\u4f7f\u7528，\u6211\u4eec\u4e0d\u8003\u8651<\/p>\n

          \u800c\u4f7f\u7528\u5230\u7684\u4f4e16\u4f4d\u4e2d\u7684\u9ad88\u4f4d\u8868\u793a\u8fdb\u7a0b\u9000\u51fa\u65f6\u7684\u9000\u51fa\u7801；\u4f4e8\u4f4d\u8868\u793a\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u53f7<\/p>\n

          \u9000\u51fa\u7801：<\/p>\n

          \u5148\u6765\u770b\u9000\u51fa\u7801\u7684\u533a\u57df：<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u9000\u51fa\u4fe1\u53f7：<\/p>\n

          \u73b0\u5728\u6765\u770b\u9000\u51fa\u4fe1\u53f7\u90e8\u5206，\u5728\u9000\u51fa\u4fe1\u53f7\u90e8\u5206\u4e2d，\u8fd8\u5b58\u5728\u7740\u4e00\u4e2a\u6807\u8bc6\u4f4dcore dump；<\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u8fd9\u91cc\u6ce8\u610f：\u5982\u679c\u8fdb\u7a0b\u662f\u5f02\u5e38\u9000\u51fa（\u88ab\u4fe1\u53f7\u6740\u6b7b），\u90a3\u5b83\u7684\u9000\u51fa\u7801\u5c31\u6ca1\u6709\u4efb\u4f55\u610f\u4e49\u4e86\u3002<\/p>\n

          \u5c31\u597d\u6bd4\u8003\u8bd5\u4f5c\u5f0a\u88ab\u53d1\u73b0\u4e86，\u8003\u8bd5\u6210\u7ee9\u5c31\u6ca1\u6709\u610f\u4e49\u4e86\u3002<\/p>\n

          \u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa，\u7a0b\u5e8f\u90fd\u6ca1\u6709\u6267\u884c\u5b8c，\u90a3\u9000\u51fa\u7801\u5c31\u6ca1\u6709\u4ec0\u4e48\u610f\u4e49\u4e86\u3002<\/p>\n

          \u6211\u4eec\u4e86\u89e3\u4e86status，\u90a3\u6211\u4eec\u5982\u679c\u60f3\u8981\u901a\u8fc7status\u83b7\u5f97\u8fdb\u7a0b\u7684\u9000\u51fa\u7801\u6216\u8005\u9000\u51fa\u4fe1\u53f7\u5462？<\/p>\n

          \u8fd9\u91cc\u5c31\u8981\u6d89\u53ca\u5230\u4f4d\u64cd\u4f5c\u4e86；<\/p>\n

          \u5728\u83b7\u53d6\u9000\u51fa\u7801\u548c\u9000\u51fa\u4fe1\u53f7\u4e4b\u524d，\u6211\u4eec\u8981\u5148\u5224\u65ad\u4e00\u4e0b\u8fdb\u7a0b\u662f\u5426\u662f\u88ab\u4fe1\u53f7\u6740\u6b7b\u7684\u3002<\/p>\n

          \u6211\u4eec\u53ea\u9700\u5224\u65adstatus\u6309\u4f4d\u4e0e\u4e0aox7F（0111 1111)，\u5224\u65ad\u9000\u51fa\u4fe1\u53f7\u662f\u5426\u4e3a0\u5373\u53ef（\u56e0\u4e3a\u6ca1\u67090\u53f7\u4fe1\u53f7）\u3002<\/p>\n

          \u9996\u5148\u83b7\u53d6\u9000\u51fa\u7801：<\/p>\n

          \u6211\u4eec\u53ea\u9700\u8ba9status>>8\u7136\u540e\u518d\u6309\u4f4d\u4e0e&\u4e0a0xFF（1111 1111）\u5373\u53ef\u83b7\u5f97\u9000\u51fa\u7801\u3002<\/p>\n

          \u83b7\u53d6\u9000\u51fa\u4fe1\u53f7：<\/p>\n

          \u5728\u4e0a\u8ff0\u4e2d\u5176\u5b9e\u5df2\u7ecf\u63cf\u8ff0\u4e86，status\u6309\u4f4d\u4e0e&\u4e0a0x7F（0111 1111）\u5373\u53ef\u83b7\u5f97\u8fdb\u7a0b\u9000\u51fa\u4fe1\u53f7\u3002<\/p>\n

          \u5982\u679c\u8fdb\u7a0b\u9000\u51fa\u4fe1\u53f7\u4e3a0\u90a3\u5c31\u8868\u793a\u8fdb\u7a0b\u662f\u6b63\u5e38\u9000\u51fa\u7684，\u56e0\u4e3a\u4e0d\u5b58\u57280\u53f7\u4fe1\u53f7\u3002<\/p>\n

          #<\/span>include<\/span> <stdio.h><\/span><\/span>
          \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
          \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
          \nint<\/span> main<\/span>(<\/span>)<\/span>
          \n{<\/span>
          \nint<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
          \nif<\/span>(<\/span>id <<\/span> 0<\/span>)<\/span>
          \nreturn<\/span> 1<\/span>;<\/span>
          \nelse<\/span> if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
          \n\/\/\u5b50\u8fdb\u7a0b<\/span>
          \nprintf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d, ppid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>,<\/span>getppid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
          \nexit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
          \n}<\/span>
          \n\/\/\u7236\u8fdb\u7a0b<\/span>
          \n int<\/span> status =<\/span> 0<\/span>;<\/span>
          \n wait<\/span>(<\/span>&<\/span>status)<\/span>;<\/span>
          \n printf<\/span>(<\/span>"child status : %d\\\\n"<\/span>,<\/span>status)<\/span>;<\/span>
          \n printf<\/span>(<\/span>"status exit code : %d\\\\n"<\/span>,<\/span>(<\/span>status)<\/span>&<\/span>0xFF<\/span>)<\/span>;<\/span>
          \n printf<\/span>(<\/span>"status exit signal : %d\\\\n"<\/span>,<\/span>status&<\/span>0x7F<\/span>)<\/span>;<\/span>
          \nreturn<\/span> 0<\/span>;<\/span>
          \n}<\/span><\/p>\n

          \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

          \u53ef\u4ee5\u770b\u5230，\u8fd9\u6837\u6211\u4eec\u7684\u786e\u83b7\u5f97\u4e86\u8fdb\u7a0b\u7684\u9000\u51fa\u7801\u548c\u9000\u51fa\u4fe1\u606f\u3002<\/p>\n

          \u5f53\u7136\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u8fd8\u5b58\u5728\u4e00\u4e9b\u5b8f，\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u8fd9\u4e9b\u5b8f\u6765\u83b7\u53d6\u9000\u51fa\u7801\u548c\u9000\u51fa\u4fe1\u606f：<\/p>\n

          \u9000\u51fa\u7801：<\/p>\n

            \n
          • \n

            WIFEXITED(status)：\u5224\u65ad\u7a0b\u5e8f\u662f\u5426\u6b63\u5e38\u9000\u51fa；<\/p>\n

            \u8fd4\u56detrue\u5c31\u8868\u793a\u7a0b\u5e8f\u6b63\u5e38\u9000\u51fa；<\/p>\n<\/li>\n

          • \n

            WEXITSTATUE(status)：\u5f53\u8fdb\u7a0b\u6b63\u5e38\u9000\u51fa\u65f6，\u53ef\u4ee5\u901a\u8fc7WEXITSTATUE\u83b7\u53d6\u8fdb\u7a0b\u7684\u9000\u51fa\u7801\u3002<\/p>\n<\/li>\n<\/ul>\n

            \u9000\u51fa\u4fe1\u53f7：<\/p>\n

              \n
            • WTERMSIG(status)：\u5f53\u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa\u65f6，\u53ef\u4ee5\u4f7f\u7528WTERMSIG\u83b7\u53d6\u5f53\u524d\u8fdb\u7a0b\u7684\u9000\u51fa\u4fe1\u53f7\u3002<\/li>\n<\/ul>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <stdlib.h><\/span><\/span>
              \n#<\/span>include<\/span> <sys\/types.h><\/span><\/span>
              \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nint<\/span> id =<\/span> fork<\/span>(<\/span>)<\/span>;<\/span>
              \nif<\/span>(<\/span>id <<\/span> 0<\/span>)<\/span>
              \nreturn<\/span> 1<\/span>;<\/span>
              \nelse<\/span> if<\/span>(<\/span>id ==<\/span> 0<\/span>)<\/span>{<\/span>
              \n\/\/\u5b50\u8fdb\u7a0b<\/span>
              \nprintf<\/span>(<\/span>"\u5b50\u8fdb\u7a0b, pid : %d, ppid : %d\\\\n"<\/span>,<\/span>getpid<\/span>(<\/span>)<\/span>,<\/span>getppid<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
              \nexit<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
              \n}<\/span>
              \n\/\/\u7236\u8fdb\u7a0b<\/span>
              \n int<\/span> status =<\/span> 0<\/span>;<\/span>
              \n pid_t<\/span> rid =<\/span> wait<\/span>(<\/span>&<\/span>status)<\/span>;<\/span>
              \n if<\/span>(<\/span>WIFEXITED<\/span>(<\/span>status)<\/span>)<\/span>{<\/span>
              \n \/\/\u8fdb\u7a0b\u6b63\u5e38\u9000\u51fa<\/span>
              \n printf<\/span>(<\/span>"wait succes,rid : %d, exit code : %d\\\\n"<\/span>,<\/span>rid,<\/span>WEXITSTATUS<\/span>(<\/span>status)<\/span>)<\/span>;<\/span>
              \n }<\/span>
              \n else<\/span>{<\/span> \/\/\u8fdb\u7a0b\u5f02\u5e38\u9000\u51fa<\/span>
              \n printf<\/span>(<\/span>"status exit signal : %d\\\\n"<\/span>,<\/span>WTERMSIG<\/span>(<\/span>status)<\/span>)<\/span>;<\/span>
              \n }<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u8fdb\u7a0b\u5207\u6362<\/h2>\n

              \u5728\u6211\u4eec\u4e4b\u524d\u521b\u5efa\u5b50\u8fdb\u7a0b\u65f6，\u6211\u4eec\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u6267\u884c\u7684\u4ee3\u7801，\u90fd\u662f\u7236\u8fdb\u7a0b\u4ee3\u7801\u7684\u4e00\u90e8\u5206；<\/p>\n

              \u5982\u679c\u6211\u4eec\u60f3\u8981\u8ba9\u6211\u4eec\u5b50\u8fdb\u7a0b\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801，\u6267\u884c\u65b0\u7684\u7a0b\u5e8f\u5462？<\/p>\n

              \u6b64\u65f6，\u6211\u4eec\u5c31\u8981\u4e00\u4e2a\u8fdb\u7a0b\u5207\u6362，\u8ba9\u5b50\u8fdb\u7a0b\u6267\u884c\u65b0\u7684\u7a0b\u5e8f；<\/p>\n

              \u5148\u6765\u770b\u4e00\u6bb5\u8fdb\u7a0b\u5207\u6362\u7684\u7b80\u5355\u4ee3\u7801：<\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"\u8fdb\u7a0b\u5207\u6362 begin\\\\n"<\/span>)<\/span>;<\/span>
              \nexecl<\/span>(<\/span>"\/usr\/bin\/ls"<\/span>,<\/span>"ls"<\/span>,<\/span>"-a"<\/span>,<\/span>"-l"<\/span>,<\/span>NULL<\/span>)<\/span>;<\/span>
              \nprintf<\/span>(<\/span>"\u8fdb\u7a0b\u5207\u6362 end\\\\n"<\/span>)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u539f\u7406<\/h3>\n

              \u7a0b\u5e8f\u66ff\u6362\u662f\u901a\u8fc7\u7279\u5b9a\u7684\u63a5\u53e3，\u52a0\u8f7d\u78c1\u76d8\u4e0a\u7684\u4e00\u4e2a\u5168\u65b0\u7684\u7a0b\u5e8f（\u4ee3\u7801\u548c\u6570\u636e）\u7136\u540e\u8ba9\u8fdb\u7a0b\u6267\u884c\u5168\u65b0\u7684\u7a0b\u5e8f\u3002<\/p>\n

              \u542c\u8d77\u6765\u8fdb\u7a0b\u66ff\u6362\u597d\u9ad8\u7ea7，\u4f46\u662f\u5b83\u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5462？<\/p>\n

              \u5f53\u6211\u4eec\u7684\u4e00\u4e2a\u8fdb\u7a0b\u60f3\u8981\u8fdb\u884c\u8fdb\u7a0b\u5207\u6362\u65f6，\u539f\u7406\u975e\u5e38\u7b80\u5355，\u5c31\u662f\u5c06\u78c1\u76d8\u4e2d\u5168\u65b0\u7684\u7a0b\u5e8f(\u4ee3\u7801\u548c\u6570\u636e)\u8986\u76d6\u5f0f\u7684\u52a0\u8f7d\u5230\u5f53\u524d\u7a0b\u5e8f\u4ee3\u7801\u548c\u6570\u636e\u7684\u4f4d\u7f6e，\u7136\u540e\u4fee\u6539\u9875\u8868\u5373\u53ef\u3002<\/p>\n

              \u800c\u6211\u4eec\u5982\u679c\u662f\u5b50\u8fdb\u7a0b\u60f3\u8981\u8fdb\u884c\u8fdb\u7a0b\u5207\u6362：<\/p>\n

              \u6211\u4eec\u77e5\u9053\u5f53\u6211\u4eec\u7236\u8fdb\u7a0b\u901a\u8fc7fork\u521b\u5efa\u5b50\u8fdb\u7a0b\u65f6，\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u7ed9\u5b50\u8fdb\u7a0b\u5206\u914d\u65b0\u7684\u5185\u5b58\u5757\u548c\u5185\u6838\u6570\u636e\u7ed3\u6784\u7ed9\u5b50\u8fdb\u7a0b，\u7136\u540e\u5c06\u7236\u8fdb\u7a0b\u7684\u90e8\u5206\u6570\u636e\u7ed3\u6784\u5185\u5bb9\u62f7\u8d1d\u5230\u5b50\u8fdb\u7a0b\u4e2d，\u5176\u4e2d\u5c31\u5305\u542b\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4，\u4ee5\u53ca\u9875\u8868；\u8fd9\u6837\u6211\u4eec\u7236\u5b50\u8fdb\u7a0b\u5c31\u6307\u5411\u540c\u4e00\u4e2a\u4ee3\u7801\u548c\u6570\u636e；<\/p>\n

              \u90a3\u6211\u4eec\u73b0\u5728\u8981\u8fdb\u884c\u8fdb\u7a0b\u66ff\u6362，\u4e5f\u5c31\u662f\u4fee\u6539\u5b50\u8fdb\u7a0b\u6307\u5411\u7684\u4ee3\u7801；<\/p>\n

              \u6b64\u65f6\u64cd\u4f5c\u7cfb\u7edf\u5c31\u4f1a\u62a5\u9519，\u53d1\u751f\u5199\u65f6\u62f7\u8d1d，\u7ed9\u5b50\u8fdb\u7a0b\u91cd\u65b0\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4，\u7136\u540e\u5c06\u65b0\u7684\u7a0b\u5e8f\u7684（\u4ee3\u7801\u548c\u6570\u636e）\u52a0\u8f7d\u5230\u8fd9\u5757\u7a7a\u95f4\u5185，\u7136\u540e\u8ba9\u5b50\u8fdb\u7a0b\u6307\u5411\u8fd9\u4e00\u5757\u65b0\u7684\u7a7a\u95f4，\u5e76\u4fee\u6539\u9875\u8868；<\/p>\n

              \u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u5b50\u8fdb\u7a0b\u7684\u7a0b\u5e8f\u66ff\u6362\u3002<\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u66ff\u6362\u51fd\u6570<\/h3>\n

              \u7406\u89e3\u4e86\u8fdb\u7a0b\u5207\u6362\u7684\u539f\u7406，\u6211\u4eec\u73b0\u5728\u6765\u770b\u8fdb\u7a0b\u5207\u6362exec\u7cfb\u5217\u51fd\u6570\u3002<\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              exec\u7cfb\u5217\u51fd\u6570\u4e00\u5171\u67096\u4e2a，\u8bb0\u8d77\u6765\u975e\u5e38\u9ebb\u70e6；\u4f46\u662f\u8fd9\u4e9b\u547d\u540d\u90fd\u662f\u6709\u89c4\u5f8b\u7684\u3002<\/p>\n

              \u6ce8\u610f：exec\u7cfb\u5217\u51fd\u6570\u5982\u679c\u66ff\u6362\u6210\u529f\u662f\u6ca1\u6709\u8fd4\u56de\u503c\u7684，\u56e0\u4e3a\u66ff\u6362\u6210\u529f\u4e4b\u540e，\u6211\u4eec\u539f\u6765\u4ee3\u7801\u540e\u9762\u7684\u90e8\u5206\u5c31\u4e0d\u4f1a\u88ab\u6267\u884c\u4e86\u3002<\/p>\n

              \u5982\u679c\u66ff\u6362\u5931\u8d25，\u5219\u8fd4\u56de-1<\/p>\n

              \u547d\u540d\u89c4\u5f8b<\/h4>\n
            • l(list)：\u8868\u793a\u53c2\u6570\u4f7f\u7528\u5217\u8868\u7684\u5f62\u5f0f(\u53ef\u53d8\u53c2\u6570\u5217\u8868)<\/li>\n
            • v(vector)：\u8868\u793a\u53c2\u6570\u4f7f\u7528\u6570\u7ec4\u7684\u5f62\u5f0f<\/li>\n
            • p(path)：\u8868\u793a\u53ef\u4ee5\u81ea\u52a8\u53bbPATH\u73af\u5883\u53d8\u91cf\u7684\u8def\u5f84\u4e2d\u627e\u5bf9\u5e94\u6307\u4ee4（\u7b80\u5355\u6765\u8bf4\u5c31\u53bb\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u4e0d\u9700\u8981\u5e26\u8def\u5f84）\u3002<\/li>\n
            • e(env)：\u8868\u793a\u73af\u5883\u53d8\u91cf\u8868；<\/li>\n

              \u73b0\u5728\u6765\u4f9d\u6b21\u770b\u4e00\u4e0b\u8fd9\u4e9b\u51fd\u6570\u7684\u7b80\u5355\u4f7f\u7528：<\/p>\n

              execl<\/h4>\n

              execl\u51fd\u6570\u53c2\u6570\u5b58\u5728\u4e24\u4e2a<\/p>\n

            • \u4e00\u4e2a\u8868\u793a\u8981\u6267\u884c\u65b0\u7684\u7a0b\u5e8f\u6240\u5728\u7684\u8def\u5f84<\/li>\n
            • \u53e6\u4e00\u4e2a\u5219\u662f\u53c2\u6570\u5217\u8868，\u8868\u793a\u8981\u600e\u4eec\u6267\u884c\u8fd9\u4e2a\u65b0\u7684\u7a0b\u5e8f<\/li>\n

              execl\u51fd\u6570\u547d\u540d\u53ea\u6709l\u8868\u793a\u4ee5\u53c2\u6570\u5217\u8868\u7684\u5f62\u5f0f\u8c03\u7528，\u6267\u884c\u7cfb\u7edf\u6307\u4ee4\u65f6\u4e5f\u8981\u5e26\u4e0a\u8def\u5f84\u3002<\/p>\n

              \u6ce8\u610f：\u53c2\u6570\u5217\u8868\u8981\u4ee5NULL\u7ed3\u5c3e；（\u547d\u4ee4\u884c\u53c2\u6570\u8868\u4ee5NULL\u7ed3\u5c3e）<\/p>\n

              \u6267\u884c\u7cfb\u7edf\u547d\u4ee4<\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"replace begin\\\\n"<\/span>)<\/span>;<\/span>
              \nexecl<\/span>(<\/span>"\/usr\/bin\/ls"<\/span>,<\/span>"ls"<\/span>,<\/span>"-a"<\/span>,<\/span>"-l"<\/span>,<\/span>NULL<\/span>)<\/span>;<\/span>
              \nprintf<\/span>(<\/span>"replaxe end\\\\n"<\/span>)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u6267\u884c\u81ea\u5df1\u5199\u7684\u7a0b\u5e8f（\u8fd9\u91cc\u6211\u4eec\u81ea\u5df1\u5199\u4e00\u4e2a\u7a0b\u5e8f，\u8f93\u51fa\u4e00\u4e0b\u547d\u4ee4\u884c\u53c2\u6570）<\/p>\n

              \/\/test.c<\/span>
              \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span>*<\/span> argv[<\/span>]<\/span>)<\/span>
              \n{<\/span>
              \n for<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span>i <<\/span> argc;<\/span>i++<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"argv[%d] : %s\\\\n"<\/span>,<\/span> i,<\/span> argv[<\/span>i]<\/span>)<\/span>;<\/span>
              \n }<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/code.c<\/span>
              \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \n#<\/span>include<\/span> <sys\/types><\/span><\/span>
              \n#<\/span>include<\/span> <sys\/wait.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"replace begin\\\\n"<\/span>)<\/span>;<\/span>
              \nexecl<\/span>(<\/span>".\/test"<\/span>,<\/span>".\/test"<\/span>,<\/span>"-a"<\/span>,<\/span>"-b"<\/span>,<\/span>"-c"<\/span>,<\/span>NULL<\/span>)<\/span>;<\/span>
              \nprintf<\/span>(<\/span>"replaxe end\\\\n"<\/span>)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              execlp<\/h4>\n

              \u8fd9\u4e2a\u51fd\u6570\u5c31\u975e\u5e38\u7b80\u5355\u4e86，\u548cexecl\u76f8\u6bd4\u552f\u4e00\u7684\u4e0d\u540c\u5c31\u662f，\u6267\u884c\u7cfb\u7edf\u6307\u4ee4\u65f6\u4e0d\u9700\u8981\u5e26\u8def\u5f84（\u4f1a\u901a\u8fc7PATH\u73af\u5883\u53d8\u91cf\u53bb\u5bfb\u627e）<\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nexecl<\/span>(<\/span>"ps"<\/span>,<\/span>"ps"<\/span>,<\/span>"-a"<\/span>,<\/span>"-l"<\/span>,<\/span>NULL<\/span>)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u5f53\u7136\u4f7f\u7528execlp\u4e5f\u53ef\u4ee5\u6267\u884c\u81ea\u5df1\u5199\u7684\u7a0b\u5e8f，\u4e0d\u8fc7\u8981\u5e26\u4e0a\u8def\u5f84\u3002<\/p>\n

              execle<\/h4>\n

              \u8fd9\u4e2a\u51fd\u6570\u5c31\u5b58\u5728\u4e09\u4e2a\u53c2\u6570\u4e86：<\/p>\n

            • \u65b0\u7684\u7a0b\u5e8f\u6240\u5728\u7684\u8def\u5f84（\u7cfb\u7edf\u6307\u4ee4\u4e5f\u8981\u5e26\u8def\u5f84）<\/li>\n
            • \u53c2\u6570\u5217\u8868，\u4ee5NULL\u7ed3\u5c3e<\/li>\n
            • \u73af\u5883\u53d8\u91cf\u8868\u3002<\/li>\n

              \u6211\u4eec\u77e5\u9053\u5168\u5c40\u53d8\u91cfenviron\u5b83\u6267\u884c\u73af\u5883\u53d8\u91cf\u8868，\u6240\u4ee5\u6211\u4eec\u5982\u679c\u4e0d\u4f7f\u7528\u6211\u4eec\u81ea\u5df1\u7684\u73af\u5883\u53d8\u91cf\u8868，\u4f20environ\u5373\u53ef\u3002<\/p>\n

              \u8fd9\u91cc\u6211\u4eec\u8ba9test\u8f93\u51fa\u4e00\u4e0b\u73af\u5883\u53d8\u91cf\u8868<\/p>\n

              \/\/test.c<\/span>
              \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span>*<\/span> argv[<\/span>]<\/span>,<\/span> char<\/span>*<\/span> env[<\/span>]<\/span>)<\/span>
              \n{<\/span>
              \nfor<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> env[<\/span>i]<\/span>;<\/span>i++<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"env[%d] : %s\\\\n"<\/span>,<\/span>i,<\/span>env[<\/span>i]<\/span>)<\/span>;<\/span>
              \n}<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nextern<\/span> char<\/span>*<\/span>*<\/span> environ;<\/span>
              \nexecle<\/span>(<\/span>".\/test"<\/span>,<\/span>".\/test"<\/span>,<\/span>NULL<\/span>,<\/span>environ)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              execv<\/h4>\n

              execv\u7b2c\u4e00\u4e2a\u53c2\u6570\u548cexecl\u76f8\u540c，\u8fd9\u91cc\u5c31\u4e0d\u63cf\u8ff0\u4e86；<\/p>\n

              \u770b\u7b2c\u4e8c\u4e2a\u53c2\u6570：char* const argv[]，\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u6307\u9488\u6570\u7ec4；\u4e5f\u5c31\u662f\u547d\u4ee4\u884c\u53c2\u6570\u8868；<\/p>\n

              (\u6ce8\u610f：\u8fd9\u91cc\u7684\u547d\u4ee4\u884c\u53c2\u6570\u5217\u8868\u8981\u4ee5NULL\u7ed3\u5c3e)<\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nchar<\/span>*<\/span> const<\/span> argv[<\/span>]<\/span> =<\/span> {<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"ls"<\/span>,<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-a"<\/span>,<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-l"<\/span>,<\/span>
              \n NULL<\/span>
              \n}<\/span>;<\/span>
              \nexecv<\/span>(<\/span>"\/usr\/bin\/ls"<\/span>,<\/span>argv)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              execvp<\/h4>\n

              execvp\u548cexecv\u7684\u533a\u522b\u5c31\u662f，\u5728\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u65f6，\u6211\u4eec\u53ef\u4ee5\u4e0d\u5e26\u8def\u5f84；execvp\u4f1a\u5728\u73af\u5883\u53d8\u91cfPATH\u4e2d\u627e\u6307\u5b9a\u7a0b\u5e8f\u3002<\/p>\n

              #<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nchar<\/span>*<\/span> const<\/span> argv[<\/span>]<\/span> =<\/span> {<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"ls"<\/span>,<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-a"<\/span>,<\/span>
              \n(<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-l"<\/span>,<\/span>
              \n NULL<\/span>
              \n}<\/span>;<\/span>
              \nexecpv<\/span>(<\/span>"ls"<\/span>,<\/span>argv)<\/span>;<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              execvpe<\/h4>\n

              execvpe\u5b58\u5728\u4e09\u4e2a\u53c2\u6570，file\u3001argv\u548cenv<\/p>\n

              file：\u7b2c\u4e00\u4e2a\u53c2\u6570，\u548c\u4e0a\u9762\u4e00\u6837，\u6307\u7684\u662f\u7a0b\u5e8f\u6240\u5728\u7684\u8def\u5f84\u3002<\/p>\n

              argv：\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6307\u7684\u662f\u547d\u4ee4\u884c\u53c2\u6570\u8868\u3002<\/p>\n

              env：\u7b2c\u4e09\u4e2a\u53c2\u6570\u6307\u7684\u662f\u73af\u5883\u53d8\u91cf\u8868\u3002<\/p>\n

              \u8fd9\u91cc\u6211\u4eec\u8fd8\u662f\u4f7f\u7528test\u6765\u6d4b\u8bd5，\u8ba9test\u8f93\u51fa\u547d\u4ee4\u884c\u53c2\u6570\u8868\u548c\u73af\u5883\u53d8\u91cf\u8868；<\/p>\n

              \/\/test.c<\/span>
              \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span>*<\/span> argv[<\/span>]<\/span>,<\/span> char<\/span>*<\/span> env[<\/span>]<\/span>)<\/span>
              \n{<\/span>
              \n for<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span>i <<\/span> argc;<\/span>i++<\/span>)<\/span>
              \n {<\/span>
              \n printf<\/span>(<\/span>"argv[%d] : %s\\\\n"<\/span>,<\/span> i,<\/span> argv[<\/span>i]<\/span>)<\/span>;<\/span>
              \n }<\/span>
              \n printf<\/span>(<\/span>"\\\\n"<\/span>)<\/span>;<\/span>
              \nfor<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> env[<\/span>i]<\/span>;<\/span>i++<\/span>)<\/span>
              \n{<\/span>
              \nprintf<\/span>(<\/span>"env[%d] : %s\\\\n"<\/span>,<\/span>i,<\/span>env[<\/span>i]<\/span>)<\/span>;<\/span>
              \n}<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \/\/code.c<\/span>
              \n#<\/span>include<\/span> <stdio.h><\/span><\/span>
              \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
              \nint<\/span> main<\/span>(<\/span>)<\/span>
              \n{<\/span>
              \nchar<\/span>*<\/span> const<\/span> argv[<\/span>]<\/span> =<\/span> {<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>".\/test"<\/span>,<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-a"<\/span>,<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-b"<\/span>,<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"-c"<\/span>,<\/span>
              \n NULL<\/span>
              \n}<\/span>;<\/span>
              \n \/\/\u4f7f\u7528\u81ea\u5df1\u7684\u73af\u5883\u53d8\u91cf\u8868<\/span>
              \n char<\/span>*<\/span> const<\/span> env[<\/span>]<\/span> =<\/span> {<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"I=LXB"<\/span>,<\/span>
              \n (<\/span>char<\/span>*<\/span> const<\/span>)<\/span>"MYVAL=666"<\/span>,<\/span>
              \n NULL<\/span>
              \n }<\/span>;<\/span>
              \n execvpe<\/span>(<\/span>".\/test"<\/span>,<\/span>argv,<\/span>env)<\/span>;<\/span>
              \n \/\/extern char** environ;<\/span>
              \n \/\/execvpe("ls",argv,environ);<\/span>
              \nreturn<\/span> 0<\/span>;<\/span>
              \n}<\/span><\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u8fd9\u91cc\u4e5f\u53ef\u4ee5\u6267\u884c\u7cfb\u7edf\u6307\u4ee4，\u4e0d\u9700\u8981\u5e26\u8def\u5f84<\/p>\n

              \u8fd9\u91cc\u7b80\u5355\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e9b\u51fd\u6570：<\/p>\n\n\u51fd\u6570\u540d\u8def\u5f84\u53c2\u6570\u683c\u5f0f\u73af\u5883\u53d8\u91cf\u8868<\/tr>\n\n\n\n\n\n\n\n
              execl<\/td>\n\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u5217\u8868<\/td>\n\u4f7f\u7528\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n
              execlp<\/td>\n\u7cfb\u7edf\u547d\u4ee4\u4e0d\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u5217\u8868<\/td>\n\u4f7f\u7528\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n
              execle<\/td>\n\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u5217\u8868<\/td>\n\u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u7684\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n
              execv<\/td>\n\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u6570\u7ec4<\/td>\n\u4f7f\u7528\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n
              execvp<\/td>\n\u7cfb\u7edf\u547d\u4ee4\u4e0d\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u6570\u7ec4<\/td>\n\u4f7f\u7528\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n
              execvpe<\/td>\n\u7cfb\u7edf\u547d\u4ee4\u4e0d\u9700\u8981\u5e26\u8def\u5f84<\/td>\n\u6570\u7ec4<\/td>\n\u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u7684\u73af\u5883\u53d8\u91cf\u8868<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              execve\u51fd\u6570<\/h3>\n

              \u4e0e\u4e0a\u9762\u7684exec\u7cfb\u5217\u7684\u51fd\u6570\u4e0d\u540c，execve\u662f\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528<\/p>\n

              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

              \u8fd9\u91cc\u7b80\u5355\u6765\u8bf4\u4e0a\u9762\u7684exec\u7cfb\u5217\u662f\u5e93\u51fd\u6570，\u800cexecve\u662f\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u7cfb\u7edf\u8c03\u7528；<\/p>\n

              exec\u7cfb\u5217\u51fd\u6570\u5bf9\u7cfb\u7edf\u8c03\u7528\u505a\u4e86\u5c01\u88c5；<\/p>\n

              \u90a3\u4e5f\u5c31\u662f\u8bf4，\u6211\u4eec\u4f7f\u7528execlp\u3001execvp\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u4e0d\u5e26\u8def\u5f84\u65f6，\u6700\u540e\u4e5f\u4f1a\u8c03\u7528execve\u65f6\u4e5f\u4f1a\u5e26\u4e0a\u8def\u5f84\u5417？<\/p>\n

              \u6211\u4eec\u5728\u4f7f\u7528execl\u3001execv\u7b49，\u4e0d\u4f20\u9012\u73af\u5883\u53d8\u91cf\u8868\u65f6，\u6700\u540e\u8c03\u7528execve\u4e5f\u4f1a\u4f20\u9012\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868\u5417？<\/p>\n

              \u6211\u6211\u4eec\u5728\u4f7f\u7528execl\u7cfb\u5217\u65f6，\u4f20\u9012\u7684\u53c2\u6570\u5217\u8868，\u4e5f\u4f1a\u88ab\u8f6c\u5316\u4e3a\u53c2\u6570\u6570\u7ec4，\u7136\u540e\u4f20\u9012\u7ed9execve\u5417？<\/p>\n

              \u5bf9\u7684，\u5f53\u6211\u4eec\u4f7f\u7528execlp\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u4e0d\u5e26\u8def\u5f84\u65f6，execl\u4f1a\u6839\u636e\u73af\u5883\u53d8\u91cfPATH\u627e\u5230\u5bf9\u5e94\u7a0b\u5e8f\u7684\u8def\u5f84，\u7136\u540e\u8c03\u7528execve\u4f20\u7a0b\u5e8f\u7684\u8def\u5f84\u3002<\/p>\n

              \u5f53\u6211\u4eec\u4f7f\u7528execl\u3001execv\u7b49\u6ca1\u6709\u4f20\u73af\u5883\u53d8\u91cf\u8868\u65f6，exec\u7cfb\u5217\u5728\u8c03\u7528execve\u7cfb\u7edf\u8c03\u7528\u65f6\u4f1a\u4f20\u5f53\u524d\u73af\u5883\u53d8\u91cf\u8868environ\u3002<\/p>\n

              \u5f53\u6211\u4eec\u4f7f\u7528execl\u7cfb\u5217，\u4f20\u9012\u7684\u53c2\u6570\u5217\u8868，\u90fd\u4f1a\u88ab\u8f6c\u5316\u6210\u53c2\u6570\u6570\u7ec4，\u7136\u540e\u518d\u5c06\u53c2\u6570\u503c\u6570\u7ec4\u4f20\u9012\u7ed9execve\u3002<\/p>\n

              \u5230\u8fd9\u91cc，\u672c\u7bc7\u6587\u7ae0\u5185\u5bb9\u5c31\u7ed3\u675f\u4e86，\u5e72\u8d27\u6ee1\u6ee1！！！<\/p>\n

              \u7b80\u5355\u603b\u7ed3：<\/p>\n

                \n
              • \n

                \u8fdb\u7a0b\u521b\u5efafork<\/p>\n<\/li>\n

              • \n

                \u8fdb\u7a0b\u9000\u51fa，\u9000\u51fa\u65f6\u7684\u9000\u51fa\u7801<\/p>\n<\/li>\n

              • \n

                \u8fdb\u7a0b\u7b49\u5f85<\/p>\n

                \u89e3\u51b3\u50f5\u5c38\u8fdb\u7a0b\u7684\u95ee\u9898；<\/p>\n

                \u83b7\u53d6\u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u7684\u9000\u51fa\u4fe1\u606f<\/p>\n

                \u9000\u51fa\u4fe1\u606fstatus<\/p>\n<\/li>\n

              • \n

                \u8fdb\u7a0b\u5207\u6362：\u539f\u7406<\/p>\n

                exec\u7cfb\u5217\u51fd\u6570<\/p>\n<\/li>\n<\/ul>\n

                \u611f\u8c22\u5404\u4f4d\u7684\u652f\u6301！<\/p>\n","protected":false},"excerpt":{"rendered":"

                \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.3k\u6b21\uff0c\u70b9\u8d5e73\u6b21\uff0c\u6536\u85cf56\u6b21\u3002fork\u3002<\/p>\n","protected":false},"author":2,"featured_media":36245,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[84,58,43],"topic":[],"class_list":["post-36265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-android","tag-linux","tag-43"],"yoast_head":"\n\u6df1\u5165\u4e86\u89e3linux\u7cfb\u7edf\u2014\u2014 \u8fdb\u7a0b\u63a7\u5236 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/36265.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6df1\u5165\u4e86\u89e3linux\u7cfb\u7edf\u2014\u2014 \u8fdb\u7a0b\u63a7\u5236 - 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