{"id":110608,"date":"2026-09-29T04:16:50","date_gmt":"2026-09-28T20:16:50","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/110608.html"},"modified":"2026-09-29T04:16:50","modified_gmt":"2026-09-28T20:16:50","slug":"%e3%80%90linux%e7%b3%bb%e7%bb%9f%e3%80%91%e3%80%90%e4%bb%8e%e3%80%90%e6%94%b6%e5%b0%be%e3%80%91%e7%bc%93%e5%86%b2%e5%8c%ba%e5%88%b0%e3%80%90%e6%96%b0%e5%bc%80%e3%80%91%e7%a3%81%e7%9b%98%e5%9d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/110608.html","title":{"rendered":"\u3010Linux\u7cfb\u7edf\u3011\u3010\u4ece\u3010\u6536\u5c3e\u3011\u7f13\u51b2\u533a\u5230\u3010\u65b0\u5f00\u3011\u78c1\u76d8\u5757\uff1a\u4e00\u8282\u8bfe\u6253\u901a\u6587\u4ef6\u7cfb\u7edf\u5e95\u5c42\u539f\u7406\u3011\u6d41\u98df\u822c\u6295\u5582"},"content":{"rendered":"

\u6536\u5c3e\u7528\u6237\u6001\u7f13\u51b2\u533a\u3001\u65b0\u5f00\u78c1\u76d8\u5757：\u4e00\u7ae0\u6253\u901a\u8f6f\u786c\u4ef6\u7684 Linux \u6587\u4ef6\u7cfb\u7edf<\/h2>\n

\u7ae0\u8282\u4e3b\u7ebf：\u672c\u7ae0\u8282\u6ca1\u6709\u505c\u7559\u5728\u201c\u600e\u4e48\u5199\u4ee3\u7801\u201d，\u800c\u662f\u4e00\u6b21\u4ece\u4ee3\u7801\u5230\u7cfb\u7edf\u3001\u4ece\u7cfb\u7edf\u5230\u786c\u4ef6\u3001\u518d\u4ece\u786c\u4ef6\u56de\u5f52\u6587\u4ef6\u7cfb\u7edf\u7684\u89c6\u89d2\u62c9\u901a\u3002\u91cd\u70b9\u53ef\u4ee5\u5f52\u7eb3\u4e3a\u4e09\u5927\u5757：<\/p>\n

  • \u7528\u6237\u7ea7\u7f13\u51b2\u533a\u673a\u5236\u2014\u2014\u901a\u8fc7\u624b\u5199\u4e00\u4e2a my_file \u5e93，\u7406\u89e3 fwrite \u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u5199\u78c1\u76d8；（\u4e0a\u7ae0\u6536\u5c3e\u5de5\u4f5c）<\/li>\n
  • \u78c1\u76d8\u7684\u7269\u7406\u7ed3\u6784\u4e0e\u903b\u8f91\u62bd\u8c61\u2014\u2014\u4ece\u76d8\u7247\u3001\u78c1\u5934\u3001\u67f1\u9762（CHS）\u5230\u903b\u8f91\u5757\u5730\u5740（LBA）\u7684\u6570\u5b66\u62bd\u8c61；<\/li>\n
  • \u6587\u4ef6\u7cfb\u7edf\u7684\u5757\u7ba1\u7406\u2014\u2014\u4e3a\u4ec0\u4e48\u64cd\u4f5c\u7cfb\u7edf\u4ee5 4KB \u4e3a\u5355\u4f4d\u7ba1\u7406\u78c1\u76d8？\u672a\u88ab\u6253\u5f00\u7684\u6587\u4ef6\u5728\u78c1\u76d8\u4e0a\u662f\u5982\u4f55\u88ab\u201c\u5206\u800c\u6cbb\u4e4b\u201d\u5730\u7ba1\u7406\u7684？<\/li>\n
    \n

    Part 1：\u7528\u6237\u6001\u7f13\u51b2\u533a\u7684\u771f\u76f8\u2014\u2014\u4e3a\u4ec0\u4e48 fwrite \u4e0d\u7b49\u4e8e write？<\/h3>\n

    1.1 \u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u8fdb\u7a0b：\u64cd\u4f5c\u7cfb\u7edf\u6253\u5f00\u6587\u4ef6，\u672c\u8d28\u662f\u4e3a\u8fdb\u7a0b\u6253\u5f00<\/h4>\n

    \u8001\u5e08\u5148\u5e26\u6211\u4eec\u56de\u987e\u4e86\u4e00\u4e2a\u6839\u672c\u95ee\u9898：\u662f\u8c01\u8ba9\u64cd\u4f5c\u7cfb\u7edf\u6253\u5f00\u6587\u4ef6\u7684？<\/p>\n

    \u7b54\u6848\u662f\u8fdb\u7a0b\u3002\u6211\u4eec\u5728\u4ee3\u7801\u91cc\u5199 fopen，\u7a0b\u5e8f\u8fd0\u884c\u5230\u8fd9\u4e00\u53e5\u65f6，\u64cd\u4f5c\u7cfb\u7edf\u624d\u4f1a\u771f\u6b63\u53bb\u6253\u5f00\u6587\u4ef6\u3002\u64cd\u4f5c\u7cfb\u7edf\u4e3a\u6bcf\u4e2a\u6253\u5f00\u7684\u6587\u4ef6\u521b\u5efa\u4e00\u4e2a\u5185\u6838\u5bf9\u8c61 struct file，\u91cc\u9762\u5b58\u7740\u6807\u5fd7\u4f4d\u3001\u8bfb\u5199\u4f4d\u7f6e\u3001\u5185\u6838\u7ea7\u7f13\u51b2\u533a\u7b49；\u800c\u8fdb\u7a0b\u5185\u90e8\u901a\u8fc7 task_struct \u91cc\u7684 files_struct \u6307\u9488，\u7ef4\u62a4\u4e00\u5f20\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868（\u4e00\u4e2a\u6307\u9488\u6570\u7ec4）\u3002<\/p>\n

    \u6211\u4eec\u5e73\u65f6\u62ff\u5230\u7684 fd（\u6587\u4ef6\u63cf\u8ff0\u7b26）\u672c\u8d28\u4e0a\u5c31\u662f\u8fd9\u5f20\u6570\u7ec4\u7684\u4e0b\u6807\u3002\u53ea\u8981\u62ff\u5230\u4e0b\u6807，\u5185\u6838\u5c31\u80fd\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528\u5feb\u901f\u7d22\u5f15\u5230\u5bf9\u5e94\u7684 struct file，\u8fdb\u800c\u64cd\u4f5c\u6587\u4ef6\u3002<\/p>\n

    1.2 \u5e93\u51fd\u6570 vs \u7cfb\u7edf\u8c03\u7528：C \u6807\u51c6\u5e93\u662f\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u201c\u4e8c\u624b\u63a5\u53e3\u201d<\/h4>\n

    \u8001\u5e08\u7279\u522b\u5f3a\u8c03\u4e86\u4e00\u7ec4\u5173\u7cfb：fopen\/fwrite\/fclose \u662f C \u5e93\u51fd\u6570，\u800c open\/write\/close \u662f \u7cfb\u7edf\u8c03\u7528\u3002\u64cd\u4f5c\u7cfb\u7edf\u53ea\u8ba4\u7cfb\u7edf\u8c03\u7528，C \u8bed\u8a00\u53ea\u662f\u5728\u7528\u6237\u5c42\u505a\u4e86\u4e00\u5c42\u5c01\u88c5\u3002<\/p>\n

    \u6bd4\u5982 fopen \u7684 "w"\u3001"a" \u6a21\u5f0f，\u5e95\u5c42\u5176\u5b9e\u662f\u901a\u8fc7\u4f4d\u56fe\u5b8f\u9009\u9879（O_CREAT | O_WRONLY | O_TRUNC \u6216 O_APPEND）\u7ec4\u5408\u8c03\u7528 open \u5b9e\u73b0\u7684\u3002\u6807\u51c6\u8f93\u5165\/\u8f93\u51fa\/\u9519\u8bef（stdin\/stdout\/stderr）\u5728 C \u5c42\u88ab\u5c01\u88c5\u6210\u4e86 FILE* \u7ed3\u6784\u4f53，\u800c\u5728\u7cfb\u7edf\u5c42\u9762\u5bf9\u5e94\u7684\u5c31\u662f\u56fa\u5b9a\u7684 fd = 0\/1\/2\u3002<\/p>\n

    1.3 \u91cd\u5b9a\u5411\u7684\u672c\u8d28：fd \u4e0b\u6807\u91cc\u7684\u201c\u5077\u6881\u6362\u67f1\u201d<\/h4>\n

    \u5f88\u591a\u540c\u5b66\u5bf9\u91cd\u5b9a\u5411\u611f\u5230\u795e\u79d8，\u8001\u5e08\u7528\u4e00\u53e5\u8bdd\u5c31\u6233\u7834\u4e86：\u91cd\u5b9a\u5411\u7684\u672c\u8d28\u662f\u201c\u5728\u5185\u6838\u5c42\u9762\u590d\u5236\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0b\u6807\u7684\u5185\u5bb9\u201d\u3002<\/p>\n

    \u6bd4\u5982\u4f60\u5148\u628a\u4e00\u4e2a\u65b0\u6587\u4ef6\u6253\u5f00，\u5f97\u5230\u4e86 fd = 3；\u7136\u540e\u628a\u4e0b\u6807 3 \u91cc\u7684\u6307\u9488\u5185\u5bb9\u62f7\u8d1d\u5230\u4e0b\u6807 1（stdout）\u91cc\u3002\u4ece\u6b64\u4ee5\u540e，\u6240\u6709\u5f80 1 \u53f7 fd \u5199\u7684\u6570\u636e，\u90fd\u6d41\u5411\u4e86\u65b0\u6587\u4ef6，\u800c\u8fdb\u7a0b\u5b8c\u5168\u611f\u77e5\u4e0d\u5230\u53d8\u5316\u3002\u8fd9\u5c31\u662f\u8f93\u51fa\u91cd\u5b9a\u5411\u3002\u8f93\u5165\u91cd\u5b9a\u5411\u3001\u8ffd\u52a0\u91cd\u5b9a\u5411\u540c\u7406，\u533a\u522b\u53ea\u5728\u4e8e\u6253\u5f00\u76ee\u6807\u6587\u4ef6\u65f6\u7528\u7684\u6807\u5fd7\u4f4d（\u662f\u5426 O_APPEND）\u3002<\/p>\n

    \u8865\u5145\u7ec6\u8282：\u6587\u4ef6\u63cf\u8ff0\u7b26\u5206\u914d\u9075\u5faa**\u201c\u6700\u5c0f\u672a\u4f7f\u7528\u4e0b\u6807\u201d**\u539f\u5219\u3002\u9ed8\u8ba4 0\/1\/2 \u5df2\u88ab\u5360\u7528，\u518d\u6253\u5f00\u65b0\u6587\u4ef6\u5c31\u4ece 3 \u5f00\u59cb；\u5982\u679c\u624b\u52a8 close \u4e86 1，\u518d\u6253\u5f00\u65b0\u6587\u4ef6\u65f6，\u7cfb\u7edf\u5c31\u4f1a\u628a\u8fd9\u4e2a\u65b0\u6587\u4ef6\u5206\u914d\u8fdb\u4e0b\u6807 1，\u4ece\u800c\u5b9e\u73b0\u4e00\u79cd\u201c\u95f4\u63a5\u91cd\u5b9a\u5411\u201d\u3002<\/p>\n

    1.4 \u201c\u4e00\u5207\u7686\u6587\u4ef6\u201d：C \u8bed\u8a00\u5c42\u9762\u7684\u591a\u6001<\/h4>\n

    \u8001\u5e08\u4ece\u6e90\u7801\u5c42\u9762\u89e3\u91ca\u4e86\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bbe\u8ba1\u667a\u6167\u3002struct file \u5185\u90e8\u6709\u4e00\u7ec4\u51fd\u6570\u6307\u9488，\u6307\u5411\u5e95\u5c42\u4e0d\u540c\u8bbe\u5907\u7684\u8bfb\u5199\u65b9\u6cd5\u3002\u78c1\u76d8\u6709\u78c1\u76d8\u7684\u8bfb\u5199\u3001\u952e\u76d8\u6709\u952e\u76d8\u7684\u8bfb\u5199\u3001\u7f51\u5361\u6709\u7f51\u5361\u7684\u8bfb\u5199\u2014\u2014\u63a5\u53e3\u5b9e\u73b0\u5b8c\u5168\u4e0d\u540c，\u4f46\u5bf9\u4e0a\u66b4\u9732\u7684\u63a5\u53e3\u7b7e\u540d\u90fd\u662f read\/write\u3002<\/p>\n

    \u8fdb\u7a0b\u901a\u8fc7\u6587\u4ef6\u63cf\u8ff0\u7b26\u770b\u5230\u4e00\u4e2a struct file \u65f6，\u5b83\u53ea\u770b\u5230\u7edf\u4e00\u7684\u8bfb\u5199\u63a5\u53e3\u3002\u64cd\u4f5c\u7cfb\u7edf\u7528 C \u8bed\u8a00\u7684\u51fd\u6570\u6307\u9488\u5b9e\u73b0\u4e86\u201c\u591a\u6001\u201d，\u628a\u8fdb\u7a0b\u201c\u9a97\u201d\u4f4f\u4e86，\u8ba9\u8fdb\u7a0b\u4ee5\u4e3a\u6240\u6709\u4e1c\u897f\u90fd\u662f\u6587\u4ef6\u3002\u8fd9\u5c31\u662f\u201c\u4e00\u5207\u7686\u6587\u4ef6\u201d\u5728\u6e90\u7801\u5c42\u9762\u7684\u843d\u811a\u70b9\u3002<\/p>\n

    1.5 \u7f13\u51b2\u533a\u7684\u53cc\u91cd\u5b9e\u9a8c：\u4e3a\u4ec0\u4e48\u6570\u636e\u4f1a\u201c\u6253\u5370\u4e24\u6b21\u201d？<\/h4>\n

    \u8fd9\u662f\u8bfe\u5802\u4e0a\u6700\u7ecf\u5178\u7684**\u201c\u7075\u9b42\u5b9e\u9a8c\u201d**，\u7528\u6765\u533a\u5206\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u4e0e\u5185\u6838\u7ea7\u7f13\u51b2\u533a\u3002<\/p>\n

    \u5b9e\u9a8c\u4ee3\u7801\u903b\u8f91\u5927\u81f4\u5982\u4e0b：<\/p>\n

    printf<\/span>(<\/span>"hello\\\\n"<\/span>)<\/span>;<\/span> \/\/ C \u5e93\u51fd\u6570<\/span>
    \nfprintf<\/span>(<\/span>stdout<\/span>,<\/span> "world\\\\n"<\/span>)<\/span>;<\/span>
    \nwrite<\/span>(<\/span>1<\/span>,<\/span> "!"<\/span>,<\/span> 1<\/span>)<\/span>;<\/span> \/\/ \u7cfb\u7edf\u8c03\u7528<\/span>
    \nfork<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \u5f53\u8fd9\u6bb5\u4ee3\u7801\u5411\u663e\u793a\u5668\u6253\u5370\u65f6，\u6211\u4eec\u770b\u5230 3 \u6761\u6d88\u606f；\u4f46\u5f53\u4f60\u628a\u5b83\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u65f6，\u4f60\u4f1a\u53d1\u73b0 C \u5e93\u51fd\u6570\u7684\u8f93\u51fa\u53d8\u6210\u4e86\u4e24\u4efd，\u800c write \u7684\u8f93\u51fa\u53ea\u6709\u4e00\u4efd\u3002<\/p>\n

    \u8001\u5e08\u7684\u89e3\u91ca\u975e\u5e38\u7ec6\u817b：<\/p>\n

      \n
    • write \u662f\u7cfb\u7edf\u8c03\u7528，\u76f4\u63a5\u628a\u6570\u636e\u5199\u8fdb\u5185\u6838\u7ea7\u7f13\u51b2\u533a，\u4e0d\u6d89\u53ca\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u3002<\/li>\n
    • printf\/fprintf \u5148\u628a\u6570\u636e\u5199\u8fdb\u4e86 C \u6807\u51c6\u5e93\u7ef4\u62a4\u7684\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u3002<\/li>\n
    • \u5411\u663e\u793a\u5668\u8f93\u51fa\u65f6，\u5237\u65b0\u7b56\u7565\u662f\u884c\u7f13\u51b2（\u9047\u5230 \\\\n \u5c31\u5237），\u6240\u4ee5 fork \u4e4b\u524d\u6570\u636e\u5df2\u8fdb\u5185\u6838，\u5b50\u8fdb\u7a0b\u4e0d\u4f1a\u91cd\u590d\u6253\u5370\u3002<\/li>\n
    • \u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u65f6，\u5237\u65b0\u7b56\u7565\u81ea\u52a8\u5347\u7ea7\u4e3a\u5168\u7f13\u51b2！\u6570\u636e\u4e00\u76f4\u7559\u5728\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u91cc\u3002\u4e00\u65e6 fork()，\u7236\u5b50\u8fdb\u7a0b\u5404\u81ea\u62e5\u6709\u8fd9\u4efd\u7f13\u51b2\u533a\u7684\u526f\u672c，\u7ed3\u675f\u65f6\u53cc\u53cc\u5237\u65b0，\u4e8e\u662f\u5c31\u6253\u5370\u4e86\u4e24\u6b21\u3002<\/li>\n<\/ul>\n

      \u8fd9\u4e2a\u5b9e\u9a8c\u201c\u4e00\u884c\u4ee3\u7801\u8003\u7a7f\u6240\u6709\u6982\u5ff5\u201d：C \u5e93\u51fd\u6570\u7ef4\u62a4\u7684\u662f\u7528\u6237\u7ea7\u7f13\u51b2\u533a，write \u76f4\u63a5\u8fdb\u5185\u6838；\u5237\u65b0\u7b56\u7565(\u6838\u5fc3)\u51b3\u5b9a\u4e86\u6570\u636e\u4f55\u65f6\u79bb\u5f00\u7528\u6237\u7a7a\u95f4\u3002<\/p>\n

      1.6 \u624b\u5199\u4e00\u4e2a my_file：\u7f13\u51b2\u533a\u4e0d\u518d\u795e\u79d8<\/h4>\n

      \u4e3a\u4e86\u9a8c\u8bc1\u7406\u8bba，\u8001\u5e08\u5e26\u7740\u6211\u4eec\u624b\u5199\u4e86\u4e00\u4e2a\u6781\u7b80\u7248 C \u6807\u51c6 IO \u5e93\u3002\u91cd\u70b9\u4e0d\u662f\u5de5\u7a0b\u5b8c\u5907，\u800c\u662f\u770b\u6e05\u7f13\u51b2\u533a\u7684\u8fd0\u4f5c\u673a\u7406\u3002<\/p>\n

      \u6838\u5fc3\u7ed3\u6784\u4f53（\u5bf9\u5e94\u8bfe\u5802\u4e0a\u7684 my_file）：<\/p>\n

      #<\/span>define<\/span> MAX_BUFFER<\/span> 1024<\/span><\/span><\/span><\/p>\n

      typedef<\/span> struct<\/span> {<\/span>
      \n int<\/span> fd;<\/span> \/\/ \u6587\u4ef6\u63cf\u8ff0\u7b26<\/span>
      \n int<\/span> flag;<\/span> \/\/ \u6807\u5fd7\u4f4d r\/w<\/span>
      \n char<\/span> buffer[<\/span>MAX_BUFFER]<\/span>;<\/span>\/\/ \u7528\u6237\u7ea7\u7f13\u51b2\u533a<\/span>
      \n int<\/span> size;<\/span> \/\/ \u5f53\u524d\u7f13\u51b2\u533a\u6709\u6548\u957f\u5ea6<\/span>
      \n int<\/span> flush_method;<\/span> \/\/ \u5237\u65b0\u7b56\u7565：\u884c\u7f13\u51b2\/\u5168\u7f13\u51b2\/\u65e0\u7f13\u51b2<\/span>
      \n}<\/span> my_file;<\/span><\/p>\n

      \u5173\u952e\u51fd\u6570\u903b\u8f91：<\/p>\n

        \n
      • my_fopen：\u5e95\u5c42\u8c03\u7528 open \u83b7\u53d6 fd，malloc \u4e00\u4e2a my_file \u5bf9\u8c61\u8fd4\u56de\u7ed9\u4e0a\u5c42\u3002<\/li>\n
      • my_fwrite：\u4e0d\u662f\u76f4\u63a5 write！ \u800c\u662f\u628a\u7528\u6237\u6570\u636e memcpy \u8fdb my_file->buffer，\u66f4\u65b0 size\u3002\u53ea\u6709\u5f53\u89e6\u53d1\u5237\u65b0\u6761\u4ef6\u65f6（\u6bd4\u5982\u884c\u7f13\u51b2\u9047\u5230\u4e86 \\\\n，\u6216\u8005\u7f13\u51b2\u533a\u6ee1\u4e86），\u624d\u4e00\u6b21\u6027\u8c03\u7528\u7cfb\u7edf write \u628a\u6570\u636e\u5237\u5165\u5185\u6838\u3002<\/li>\n
      • my_fclose：\u5173\u95ed\u524d\u5f3a\u5236\u5237\u65b0\u5269\u4f59\u6570\u636e，\u7136\u540e\u8c03\u7528\u7cfb\u7edf close \u5e76\u91ca\u653e\u5bf9\u8c61\u3002<\/li>\n
      • my_fflush：\u628a\u7f13\u51b2\u533a\u91cc\u6512\u7684\u6570\u636e\u4e00\u6b21\u6027 write \u8fdb\u53bb，\u7136\u540e\u6e05\u7a7a size\u3002<\/li>\n<\/ul>\n

        \u8bfe\u5802\u5b9e\u9a8c\u73b0\u8c61：
        \n\u8001\u5e08\u7279\u610f\u5199\u4e86\u4e00\u4e2a\u4e0d\u5e26 \\\\n \u7684\u5b57\u7b26\u4e32，\u5faa\u73af\u5199\u5165 10 \u79d2，\u6700\u540e\u624d\u8c03 my_fclose\u3002<\/p>\n

        const<\/span> char<\/span>*<\/span> msg =<\/span> "hello world!!!!"<\/span>;<\/span> \/\/ \u6545\u610f\u4e0d\u5e26 \\\\n<\/span>
        \nfor<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 20<\/span>;<\/span> i++<\/span>)<\/span> {<\/span>
        \n my_fwrite<\/span>(<\/span>fp,<\/span> msg,<\/span> strlen<\/span>(<\/span>msg)<\/span>)<\/span>;<\/span>
        \n sleep<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
        \n}<\/span>
        \nmy_fclose<\/span>(<\/span>fp)<\/span>;<\/span><\/p>\n

        \u8fd0\u884c\u7684\u65f6\u5019\u89c2\u5bdf\u65e5\u5fd7\u6587\u4ef6：\u524d\u5341\u51e0\u79d2\u6587\u4ef6\u5927\u5c0f\u59cb\u7ec8\u662f 0！\u56e0\u4e3a\u7f13\u51b2\u533a\u4e00\u76f4\u6ca1\u6709\u6ee1\u8db3\u201c\u884c\u7f13\u51b2\u201d\u6761\u4ef6，\u6570\u636e\u5168\u6512\u5728\u7528\u6237\u6001\u3002\u76f4\u5230\u8fdb\u7a0b\u7ed3\u675f\u8c03\u7528 my_fclose \u5f3a\u5236\u5237\u65b0，\u6587\u4ef6\u4e00\u77ac\u95f4\u88ab\u5199\u5165\u4e86\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n

        \u5982\u679c\u4e2d\u9014\u8c03\u7528 my_fflush，\u5c31\u80fd\u8089\u773c\u770b\u5230\u6570\u636e\u88ab\u4e00\u6bb5\u6bb5\u5237\u8fdb\u6587\u4ef6\u3002\u8fd9\u4e2a\u5b9e\u9a8c\u628a\u201c\u7f13\u51b2\u533a\u51cf\u5c11\u7cfb\u7edf\u8c03\u7528\u201d\u7684\u610f\u4e49\u5f7b\u5e95\u5750\u5b9e\u4e86\u3002<\/p>\n

        1.7 \u4e3a\u4ec0\u4e48\u9700\u8981\u7528\u6237\u7ea7\u7f13\u51b2\u533a？\u2014\u2014\u5feb\u9012\u7bb1\u4e0e\u5185\u5b58\u6c60<\/h4>\n

        \u8001\u5e08\u7528\u4e86\u4e24\u4e2a\u751f\u6d3b\u7c7b\u6bd4\u89e3\u91ca\u7f13\u51b2\u533a\u7684\u610f\u4e49：<\/p>\n

      • \u201c\u5feb\u9012\u7bb1\u5b50\u201d analogy（\u4e24\u4e2a\u4e8b\u7269\u4e4b\u95f4\u5728\u67d0\u4e9b\u65b9\u9762\u5b58\u5728\u76f8\u4f3c\u6027，\u901a\u8fc7\u8fd9\u79cd\u76f8\u4f3c\u6027\u6765\u89e3\u91ca\u6216\u8bf4\u660e\u67d0\u4e2a\u6982\u5ff5\u3002）：\u5982\u679c\u4f60\u8fde\u7eed 10 \u5929\u6bcf\u5929\u5bc4\u4e00\u4e2a\u5feb\u9012，\u6bcf\u6b21\u90fd\u6253\u7535\u8bdd\u53eb\u5feb\u9012\u5458\u4e0a\u95e8，\u6c9f\u901a\u6210\u672c\u6781\u9ad8\u3002\u4e0d\u5982\u5728\u5bb6\u95e8\u53e3\u653e\u4e00\u4e2a\u7bb1\u5b50，10 \u5929\u7684\u5feb\u9012\u90fd\u6254\u8fdb\u53bb，\u6700\u540e\u4e00\u6b21\u6027\u53eb\u5feb\u9012\u5458\u6765\u53d6\u3002\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u5c31\u662f\u8fd9\u4e2a\u201c\u7bb1\u5b50\u201d，\u5b83\u628a\u591a\u6b21\u96f6\u788e\u7684\u6570\u636e\u6512\u6210\u4e00\u6b21\u5927\u5757\u5199\u5165，\u6781\u5927\u51cf\u5c11\u4e86\u7cfb\u7edf\u8c03\u7528\u6b21\u6570\u548c\u7528\u6237\u6001\/\u5185\u6838\u6001\u5207\u6362\u6210\u672c\u3002<\/li>\n
      • \u5185\u5b58\u6c60\u601d\u60f3：\u5c31\u50cf C++ STL \u5bb9\u5668\u7684\u81ea\u52a8\u6269\u5bb9\u9884\u7559\u7a7a\u95f4，\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u4e5f\u662f\u4e00\u79cd\u201c\u6c60\u5316\u201d\u3002\u5148\u628a\u6570\u636e\u62f7\u8d1d\u5230\u5e94\u7528\u5c42\u7a7a\u95f4，\u5e94\u7528\u5c42\u5185\u90e8\u64cd\u4f5c\u4e0d\u6d89\u53ca\u6743\u9650\u5207\u6362，\u6210\u672c\u6700\u4f4e\u3002<\/li>\n

        \u7b2c\u4e8c\u4e2a\u610f\u4e49\u662f\u683c\u5f0f\u5316\u652f\u6301\u3002printf \u7684\u683c\u5f0f\u5316\u8f93\u51fa\u9700\u8981\u5148\u6682\u5b58\u4e2d\u95f4\u7ed3\u679c，\u7f13\u51b2\u533a\u5c31\u662f\u7528\u6765\u4fdd\u5b58\u8fd9\u4e9b\u683c\u5f0f\u5316\u540e\u7684\u5b57\u7b26\u4e32，\u518d\u7edf\u4e00\u5237\u65b0\u7684\u3002<\/p>\n

        1.8 \u5f3a\u5236\u5237\u76d8：fflush\u3001fsync \u4e0e\u6570\u636e\u5e93\u201c\u843d\u76d8\u201d<\/h4>\n

        \u8fd9\u91cc\u6709\u4e00\u4e2a\u6781\u5bb9\u6613\u88ab\u6df7\u6dc6\u7684\u7ec6\u8282：<\/p>\n

          \n
        • fflush（C \u5e93\u51fd\u6570）：\u53ea\u628a\u6570\u636e\u4ece\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u5237\u5230\u5185\u6838\u7ea7\u7f13\u51b2\u533a\u3002<\/li>\n
        • fsync（\u7cfb\u7edf\u8c03\u7528）：\u5f3a\u5236\u8981\u6c42\u64cd\u4f5c\u7cfb\u7edf\u628a\u5185\u6838\u7ea7\u7f13\u51b2\u533a\u7684\u6570\u636e\u540c\u6b65\u5230\u7269\u7406\u5916\u8bbe（\u78c1\u76d8），\u4fd7\u79f0**\u201c\u843d\u76d8\u201d**\u3002<\/li>\n<\/ul>\n

          \u8001\u5e08\u4e3e\u4e86\u4e00\u4e2a\u6570\u636e\u5e93\u7684\u573a\u666f：MySQL\u3001Redis \u8fd9\u7c7b\u6570\u636e\u5e93\u672c\u8d28\u4e0a\u4e5f\u662f\u4e00\u4e2a\u8fdb\u7a0b，\u5b83\u4eec\u7684\u6570\u636e\u6700\u7ec8\u90fd\u5b58\u5728\u78c1\u76d8\u6587\u4ef6\u91cc\u3002\u5f53\u6570\u636e\u63d0\u4ea4\u6216\u9700\u8981\u6301\u4e45\u5316\u65f6，\u6570\u636e\u5e93\u8fdb\u7a0b\u5148\u628a\u6570\u636e\u5199\u8fdb\u5185\u6838\u7f13\u51b2\u533a，\u7136\u540e\u8c03\u7528 fsync \u786e\u4fdd\u6570\u636e\u771f\u6b63\u5199\u5230\u78c1\u76d8\u4e0a\u3002\u5426\u5219\u5982\u679c\u6b64\u65f6\u65ad\u7535，\u53ea\u5728\u5185\u6838\u91cc\u7684\u6570\u636e\u8fd8\u662f\u4f1a\u4e22\u5931\u3002<\/p>\n

          \u96f6\u788e\u77e5\u8bc6\u70b9：Linux \u4e0b\u8fd8\u6709\u4e00\u4e2a sync \u547d\u4ee4，\u4f1a\u628a\u5f53\u524d\u7cfb\u7edf\u91cc\u6240\u6709\u7f13\u5b58\u6570\u636e\u4e00\u6b21\u6027\u5237\u5230\u5916\u8bbe\u3002<\/p>\n

          \n

          Part 2：\u78c1\u76d8\u7684\u7269\u7406\u4e16\u754c\u2014\u2014\u4ece\u76d8\u7247\u3001\u78c1\u5934\u5230 CHS \u4e09\u7ef4\u5bfb\u5740<\/h3>\n

          2.1 \u78c1\u76d8：\u8ba1\u7b97\u673a\u91cc\u552f\u4e00\u7684\u201c\u673a\u68b0\u8bbe\u5907\u201d\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/h4>\n

          \u8001\u5e08\u63d0\u9192\u6211\u4eec\u4e00\u4e2a\u4e8b\u5b9e：\u7535\u5b50\u8ba1\u7b97\u673a\u91cc，\u78c1\u76d8（\u8fd9\u91cc\u6307\u673a\u68b0\u786c\u76d8）\u51e0\u4e4e\u662f\u552f\u4e00\u7684\u673a\u68b0\u8bbe\u5907\u3002\u5b83\u5bb9\u91cf\u6781\u5927\u3001\u4ef7\u683c\u6781\u4fbf\u5b9c（\u540c\u4ef7\u4f4d\u4e0b\u5185\u5b58\u53ef\u80fd\u53ea\u80fd\u4e70 16G，\u78c1\u76d8\u80fd\u4e70\u51e0 T），\u4f46\u4e5f\u6b63\u662f\u56e0\u4e3a\u5b83\u662f\u673a\u68b0\u8bbe\u5907，\u901f\u5ea6\u6bd4\u5185\u5b58\u6162\u5f97\u591a\u3002<\/p>\n

          \u78c1\u76d8\u5728\u4f01\u4e1a\u540e\u7aef\u5b58\u50a8\u6d77\u91cf\u6570\u636e\u65f6\u4ecd\u662f\u4e3b\u6d41\u3002\u6211\u56fd\u56fa\u6001\u786c\u76d8\u6280\u672f\u4e0d\u9519，\u4f46\u4f20\u7edf\u673a\u68b0\u78c1\u76d8\u6280\u672f\u4ecd\u4e0e\u56fd\u5916\u6709\u5dee\u8ddd\u3002\u78c1\u76d8\u6309\u7528\u9014\u53ef\u5206\u4e3a\u4f01\u4e1a\u7ea7（\u9ad8\u8f6c\u901f\u3001\u9ad8\u7cbe\u51c6\u3001\u9ad8\u4ef7\u683c）\u548c\u684c\u9762\u7ea7（\u6d88\u8d39\u7ea7）\u3002<\/p>\n

          2.2 \u78c1\u9053\u3001\u6247\u533a\u4e0e\u67f1\u9762：\u78c1\u5934\u4e3a\u4ec0\u4e48\u8981\u201c\u5171\u8fdb\u9000\u201d<\/h4>\n

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

          \u78c1\u76d8\u7684\u7269\u7406\u7ed3\u6784\u62c6\u89e3：<\/p>\n

            \n
          • \u76d8\u7247（Platter）：\u50cf\u5149\u76d8\u4e00\u6837\u5149\u6ed1\u7684\u5706\u76d8，\u4e00\u4e2a\u78c1\u76d8\u91cc\u6709\u591a\u4e2a\u76d8\u7247（\u6bd4\u5982 3 \u7247），\u6bcf\u7247\u6b63\u53cd\u4e24\u9762\u90fd\u80fd\u5b58\u6570\u636e\u3002<\/li>\n
          • \u4e3b\u8f74\u4e0e\u9a6c\u8fbe：\u5e26\u52a8\u76d8\u7247\u9ad8\u901f\u65cb\u8f6c，\u4f01\u4e1a\u7ea7\u53ef\u8fbe\u6bcf\u5206\u949f\u4e0a\u4e07\u8f6c\u3002<\/li>\n
          • \u78c1\u5934（Head）\u4e0e\u6446\u81c2：\u78c1\u5934\u5728\u6446\u81c2\u5e26\u52a8\u4e0b\u6cbf\u534a\u5f84\u65b9\u5411\u6765\u56de\u6446\u52a8，\u5bfb\u627e\u6570\u636e\u3002<\/li>\n<\/ul>\n

            \u5b58\u50a8\u5355\u5143：<\/p>\n

              \n
            • \u78c1\u9053（Track）：\u76d8\u7247\u4e0a\u4e00\u5708\u5708\u540c\u5fc3\u5706\u3002<\/li>\n
            • \u6247\u533a（Sector）：\u78c1\u9053\u88ab\u5207\u5206\u6210\u7684\u4e00\u5c0f\u6bb5，\u4f20\u7edf\u5927\u5c0f\u4e3a 512 \u5b57\u8282，\u662f\u78c1\u76d8\u8bfb\u5199\u7684\u6700\u5c0f\u7269\u7406\u5355\u4f4d\u3002<\/li>\n
            • \u67f1\u9762（Cylinder）：\u6240\u6709\u76d8\u7247\u4e0a\u534a\u5f84\u76f8\u540c\u7684\u78c1\u9053，\u5728\u4e09\u7ef4\u7a7a\u95f4\u91cc\u5171\u540c\u6784\u6210\u4e00\u4e2a\u201c\u5706\u67f1\u9762\u201d\u3002\u7531\u4e8e\u591a\u4e2a\u78c1\u5934\u56fa\u5b9a\u5728\u540c\u4e00\u4e2a\u6446\u81c2\u4e0a，\u5b83\u4eec\u5171\u8fdb\u9000\u2014\u2014\u5f80\u91cc\u8d70\u65f6\u6240\u6709\u78c1\u5934\u4e00\u8d77\u5f80\u91cc，\u5f80\u5916\u8d70\u65f6\u4e00\u8d77\u5f80\u5916\u3002\u6240\u4ee5\u5f53\u5b9a\u4f4d\u5230\u4e00\u4e2a\u67f1\u9762\u65f6，\u5b9e\u9645\u4e0a\u6240\u6709\u76d8\u7247\u7684\u540c\u4e00\u534a\u5f84\u78c1\u9053\u90fd\u5df2\u7ecf\u540c\u65f6\u5c31\u7eea\u3002<\/li>\n<\/ul>\n

              \u96f6\u788e\u77e5\u8bc6\u70b9：\u78c1\u5934\u4e0e\u76d8\u7247\u4e4b\u95f4\u662f\u201c\u98de\u884c\u201d\u72b6\u6001，\u78c1\u76d8\u5185\u90e8\u63a5\u8fd1\u771f\u7a7a，\u5bc6\u5c01\u6027\u662f\u519b\u5de5\u7ea7\u3002\u4e00\u65e6\u62c6\u5f00，\u78c1\u76d8\u57fa\u672c\u62a5\u5e9f（\u666e\u901a\u4eba\u610f\u4e49\u4e0a\u7684\u62a5\u5e9f）\u3002<\/p>\n

              2.3 CHS \u5bfb\u5740：\u628a\u78c1\u76d8\u770b\u6210\u4e09\u7ef4\u6570\u7ec4<\/h4>\n

              \u65e2\u7136\u5b9a\u4f4d\u4e00\u4e2a\u6247\u533a\u9700\u8981\u786e\u5b9a：<\/p>\n

            • \u54ea\u4e2a\u67f1\u9762（Cylinder）\u2014\u2014\u6446\u81c2\u4f38\u7f29\u5b9a\u4f4d\u534a\u5f84；<\/li>\n
            • \u54ea\u4e2a\u78c1\u5934（Head）\u2014\u2014\u9009\u62e9\u54ea\u4e00\u4e2a\u76d8\u9762；<\/li>\n
            • \u54ea\u4e2a\u6247\u533a（Sector）\u2014\u2014\u7b49\u76d8\u7247\u65cb\u8f6c\u5230\u78c1\u5934\u4e0b\u65b9\u3002<\/li>\n

              \u8fd9\u4e0d\u5c31\u662f\u4e09\u7ef4\u6570\u7ec4\u7684\u4e09\u4e2a\u4e0b\u6807\u5417？\u4e8e\u662f\u65e9\u671f\u78c1\u76d8\u7528 CHS（Cylinder, Head, Sector）\u6765\u5b9a\u4f4d\u7269\u7406\u5730\u5740\u3002<\/p>\n

              \u4e3a\u4ec0\u4e48\u78c1\u76d8\u8981\u8fd9\u6837\u8fd0\u52a8？\u78c1\u5934\u6446\u52a8\u662f\u4e3a\u4e86\u627e\u78c1\u9053\/\u67f1\u9762；\u76d8\u7247\u65cb\u8f6c\u662f\u4e3a\u4e86\u5728\u78c1\u9053\u5185\u627e\u5177\u4f53\u7684\u6247\u533a\u3002\u5982\u679c\u9ad8\u901f\u65cb\u8f6c\u4e0b\u9519\u8fc7\u4e86\u76ee\u6807\u6247\u533a，\u53ea\u80fd\u7b49\u4e0b\u4e00\u5708\u2014\u2014\u8fd9\u4e5f\u662f\u4f01\u4e1a\u7ea7\u78c1\u76d8\u5f3a\u8c03\u201c\u7cbe\u51c6\u5ea6\u201d\u7684\u539f\u56e0\u3002<\/p>\n

              2.4 \u4f01\u4e1a\u7ea7 vs \u684c\u9762\u7ea7：\u8f6c\u901f\u3001\u6446\u81c2\u4e0e\u201c\u9519\u8fc7\u7b49\u4e0b\u4e00\u5708\u201d<\/h4>\n

              \u8fd9\u91cc\u8001\u5e08\u8865\u5145\u4e86\u4e00\u4e2a\u884c\u4e1a\u5e38\u8bc6：<\/p>\n

                \n
              • \u4f01\u4e1a\u7ea7\u78c1\u76d8：\u78c1\u5934\u81c2\u6446\u52a8\u9891\u7387\u9ad8\u3001\u76d8\u7247\u8f6c\u901f\u9ad8\u3001\u5b9a\u4f4d\u7cbe\u51c6\u3002\u8bfb\u4e00\u904d\u5c31\u80fd\u9501\u5b9a\u6247\u533a，\u6548\u7387\u9ad8，\u8d35\u3002<\/li>\n
              • \u684c\u9762\u7ea7\u78c1\u76d8：\u8f6c\u901f\u6162\u3001\u6446\u81c2\u6162，\u53ef\u80fd\u9700\u8981\u65cb\u8f6c\u591a\u5708\u3001\u591a\u6b21\u786e\u8ba4\u624d\u80fd\u5b9a\u4f4d\u5230\u6247\u533a\u3002\u4fbf\u5b9c\u3002<\/li>\n<\/ul>\n

                2.5 \u78c1\u76d8\u5bb9\u91cf\u600e\u4e48\u7b97？<\/h4>\n

                \u867d\u7136\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u518d\u76f4\u63a5\u7528 CHS，\u4f46\u8fd9\u4e2a\u516c\u5f0f\u80fd\u5e2e\u4f60\u7406\u89e3\u78c1\u76d8\u7684\u7269\u7406\u6781\u9650：<\/p>\n

                \u78c1\u76d8\u5bb9\u91cf = \u78c1\u5934\u6570 \u00d7 \u78c1\u9053\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570 \u00d7 512 \u5b57\u8282<\/p>\n

                \u4e3a\u4ec0\u4e48\u5916\u90e8\u78c1\u9053\u7684\u6247\u533a\u770b\u8d77\u6765\u201c\u66f4\u5bbd\u201d，\u4f46\u5bb9\u91cf\u4ecd\u4e00\u6837？\u56e0\u4e3a\u73b0\u4ee3\u78c1\u76d8\u901a\u8fc7\u4e0d\u540c\u7684\u6bd4\u7279\u4f4d\u758f\u5bc6\u7a0b\u5ea6\u6765\u4fdd\u8bc1\u6bcf\u4e2a\u6247\u533a\u90fd\u662f 512 \u5b57\u8282（\u4f20\u7edf）\u3002\u5f53\u7136，\u5148\u8fdb\u78c1\u76d8\u4e5f\u53ef\u4ee5\u505a\u5230\u5916\u90e8\u6247\u533a\u5b58\u66f4\u591a\u6570\u636e，\u4f46\u8bfe\u5802\u4e0a\u4f5c\u4e3a\u57fa\u7840\u6211\u4eec\u4e0d\u5c55\u5f00\u3002<\/p>\n

                \u96f6\u788e\u77e5\u8bc6\u70b9：CHS \u6a21\u5f0f\u652f\u6301\u7684\u5bb9\u91cf\u6709\u9650，\u8001\u5f0f\u5bfb\u5740\u4e0a\u9650\u7ea6 8.4GB\u3002\u73b0\u4ee3\u78c1\u76d8\u867d\u7136\u5185\u90e8\u4ecd\u7528 CHS \u7269\u7406\u5bfb\u5740，\u4f46\u5bf9\u5916\u5df2\u5411\u64cd\u4f5c\u7cfb\u7edf\u9690\u85cf\u4e86\u8fd9\u4e9b\u7ec6\u8282\u3002<\/p>\n

                \n

                Part 3：\u4ece\u7269\u7406\u5230\u903b\u8f91\u2014\u2014\u78c1\u5e26\u7684\u542f\u793a\u4e0e LBA \u7ebf\u6027\u62bd\u8c61<\/h3>\n

                3.1 \u78c1\u5e26\u7c7b\u6bd4：\u5377\u8d77\u6765\u662f\u540c\u5fc3\u5706，\u62c9\u76f4\u5c31\u662f\u7ebf\u6027\u6570\u7ec4<\/h4>\n

                \u4e3a\u4e86\u8ba9\u6211\u4eec\u7406\u89e3\u201c\u62bd\u8c61\u201d\u7684\u5a01\u529b，\u8001\u5e08\u4e3e\u4e86\u4e00\u4e2a\u6781\u5177\u5e74\u4ee3\u611f\u7684\u4f8b\u5b50\u2014\u2014\u78c1\u5e26\u3002\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

                \u78c1\u5e26\u5377\u8d77\u6765\u65f6，\u5b83\u662f\u4e00\u5708\u5708\u540c\u5fc3\u5706；\u4f46\u5c0f\u65f6\u5019\u5982\u679c\u624b\u8d31\u628a\u78c1\u5e26\u62c9\u51fa\u6765，\u5b83\u5c31\u53d8\u6210\u4e86\u4e00\u6761\u7ebf\u6027\u7ed3\u6784，\u4ece\u6751\u4e1c\u5934\u62c9\u5230\u6751\u897f\u5934\u3002<\/p>\n

                \u78c1\u76d8\u7684\u76d8\u9762\u540c\u7406\u3002\u867d\u7136\u76d8\u7247\u662f\u5706\u7684，\u4f46\u6211\u4eec\u53ef\u4ee5\u4ece\u903b\u8f91\u4e0a\u628a\u6bcf\u4e00\u9762\u201c\u526a\u5f00\u62c9\u76f4\u201d，\u770b\u6210\u4e00\u6839\u7ebf；\u591a\u9762\u78c1\u76d8\u5c31\u662f\u591a\u6839\u7ebf\u62fc\u5728\u4e00\u8d77\u3002\u4ece\u8fd9\u4e00\u523b\u8d77，\u64cd\u4f5c\u7cfb\u7edf\u7ba1\u7406\u78c1\u76d8\u7684\u65b9\u5f0f\u4ece\u201c\u7ba1\u7406\u4e00\u4e2a\u4e09\u7ef4\u673a\u68b0\u7ed3\u6784\u201d\u53d8\u6210\u4e86\u201c\u7ba1\u7406\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4\u201d\u3002<\/p>\n

                3.2 LBA：\u64cd\u4f5c\u7cfb\u7edf\u7ba1\u7406\u78c1\u76d8\u7684\u201c\u9ed1\u76d2\u63a5\u53e3\u201d\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/h4>\n

                \u628a\u8fd9\u4e2a\u7ebf\u6027\u7ed3\u6784\u91cc\u7684\u6bcf\u4e2a\u6247\u533a\u7f16\u4e0a\u53f7，\u5c31\u5f97\u5230\u4e86\u903b\u8f91\u5757\u5730\u5740（LBA, Logical Block Address）\u3002LBA \u4ece 0 \u5f00\u59cb\u8fde\u7eed\u9012\u589e\u3002<\/p>\n

                \u64cd\u4f5c\u7cfb\u7edf\u4ece\u6b64\u4e0d\u9700\u8981\u77e5\u9053：<\/p>\n

                  \n
                • \u78c1\u76d8\u6709\u51e0\u5f20\u76d8\u7247；<\/li>\n
                • \u6709\u51e0\u4e2a\u78c1\u5934；<\/li>\n
                • \u78c1\u5934\u5728\u54ea\u4e00\u4e2a\u67f1\u9762\u4e0a\u3002<\/li>\n<\/ul>\n

                  \u5b83\u53ea\u9700\u8981\u77e5\u9053\u4e24\u4e2a\u6570\u5b57：\u78c1\u76d8\u603b\u5bb9\u91cf\u548c\u6bcf\u4e2a\u6247\u533a\u5927\u5c0f（512 \u5b57\u8282）\u3002\u4e00\u9664\u5c31\u77e5\u9053\u603b\u5171\u6709\u591a\u5c11\u4e2a\u6247\u533a，\u4e5f\u5c31\u62e5\u6709\u4e86\u6574\u4e2a LBA \u5730\u5740\u7a7a\u95f4\u3002<\/p>\n

                  \u96f6\u788e\u77e5\u8bc6\u70b9：\u6247\u533a\u7f16\u53f7\u901a\u5e38\u4ece 1 \u5f00\u59cb，\u800c\u67f1\u9762\u548c\u78c1\u5934\u7f16\u53f7\u4ece 0 \u5f00\u59cb\u3002\u4f60\u5e38\u542c\u5230\u7684\u201c0 \u53f7\u67f1\u9762\u30010 \u53f7\u78c1\u5934\u30011 \u53f7\u6247\u533a\u201d\u5c31\u662f\u8fd9\u4e48\u6765\u7684\u3002<\/p>\n

                  3.3 CHS \u4e0e LBA \u7684\u4e92\u8f6c：\u4e00\u7ef4\u4e0b\u6807\u4e0e\u4e09\u7ef4\u6570\u7ec4\u7684\u6570\u5b66\u6e38\u620f<\/h4>\n

                  \u8fd9\u662f\u786c\u4ef6\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7684\u4ea4\u63a5\u5904\u3002\u867d\u7136 OS \u53ea\u8ba4 LBA，\u4f46\u78c1\u76d8\u56fa\u4ef6\u5185\u90e8\u5fc5\u987b\u80fd\u628a LBA \u8f6c\u56de CHS \u53bb\u9a71\u52a8\u673a\u68b0\u7ed3\u6784\u3002\u8001\u5e08\u7ed9\u51fa\u4e86\u4e92\u8f6c\u7684\u6838\u5fc3\u601d\u8def：<\/p>\n

                  CHS \u2192 LBA：<\/p>\n

                  LBA = C \u00d7 (\u78c1\u5934\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570) + H \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570 + (S – 1)<\/p>\n

                  （\u6ce8：\u56e0\u4e3a\u6247\u533a\u53f7 S \u4ece 1 \u5f00\u59cb，\u800c LBA \u4ece 0 \u5f00\u59cb，\u6240\u4ee5\u8981\u51cf 1）<\/p>\n

                  LBA \u2192 CHS：<\/p>\n

                  C = LBA \/\/ (\u78c1\u5934\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570) \/\/ \u6574\u9664\u5f97\u67f1\u9762\u53f7
                  \nH = (LBA % (\u78c1\u5934\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570)) \/\/ \u6bcf\u78c1\u9053\u6247\u533a\u6570 \/\/ \u5f97\u78c1\u5934\u53f7
                  \nS = (LBA % \u6bcf\u78c1\u9053\u6247\u533a\u6570) + 1 \/\/ \u53d6\u4f59\u518d\u52a01\u5f97\u6247\u533a\u53f7<\/p>\n

                  \u8001\u5e08\u7528\u4e09\u7ef4\u6570\u7ec4\u4e0b\u6807\u8f6c\u6362\u6765\u7c7b\u6bd4：\u4ee5\u524d\u5b66 C \u8bed\u8a00，\u4e8c\u7ef4\u6570\u7ec4\u7269\u7406\u4e0a\u4e5f\u662f\u7ebf\u6027\u5b58\u50a8\u7684；\u78c1\u76d8\u7684\u591a\u7ef4\u7ed3\u6784\u540c\u7406，\u6700\u7ec8\u90fd\u53ef\u4ee5\u62cd\u5e73\u6210\u4e00\u7ef4\u3002\u56fa\u4ef6\u8d1f\u8d23\u505a\u8fd9\u4e2a\u8f6c\u6362，\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u5168\u900f\u660e\u3002<\/p>\n

                  \n

                  Part 4：\u6587\u4ef6\u7cfb\u7edf\u7684\u5757\u7ba1\u7406\u2014\u2014\u4ece\u5206\u533a\u5230 inode<\/h3>\n

                  4.1 \u5757\u8bbe\u5907\u4e0e\u5b57\u7b26\u8bbe\u5907：\u968f\u673a\u8bbf\u95ee vs \u987a\u5e8f\u6d41\u6dcc<\/h4>\n

                  \u64cd\u4f5c\u7cfb\u7edf\u628a\u5916\u8bbe\u5206\u4e3a\u4e24\u7c7b：<\/p>\n

                    \n
                  • \u5757\u8bbe\u5907（\u5982\u78c1\u76d8）：\u652f\u6301\u968f\u673a\u8bbf\u95ee，\u4ee5\u201c\u5757\u201d\u4e3a\u5355\u4f4d\u8bfb\u5199；<\/li>\n
                  • \u5b57\u7b26\u8bbe\u5907（\u5982\u952e\u76d8\u3001\u9f20\u6807）：\u652f\u6301\u987a\u5e8f\u8bbf\u95ee，\u4ee5\u5b57\u7b26\/\u5b57\u8282\u4e3a\u5355\u4f4d\u9010\u4e2a\u8bfb\u53d6\u3002\u4f60\u53ef\u4ee5\u4e71\u5e8f\u8bfb\u78c1\u76d8，\u4f46\u4e0d\u80fd\u4e71\u5e8f\u8bfb\u952e\u76d8\u2014\u2014\u4f60\u5148\u6309\u4e86 A \u518d\u6309 B，\u7a0b\u5e8f\u4e0d\u53ef\u80fd\u5148\u8bfb\u5230 B \u518d\u8bfb\u5230 A\u3002<\/li>\n<\/ul>\n

                    4.2 4KB \u5757：\u4e3a\u4ec0\u4e48\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u8ba4\u6247\u533a，\u53ea\u8ba4\u201c\u5757\u201d？<\/h4>\n

                    \u867d\u7136\u78c1\u76d8\u7684\u6700\u5c0f\u7269\u7406\u5355\u4f4d\u662f 512 \u5b57\u8282\u6247\u533a，\u4f46\u64cd\u4f5c\u7cfb\u7edf\u89c9\u5f97\u4e00\u6b21\u8bfb 512 \u5b57\u8282\u6548\u7387\u592a\u4f4e\u3002\u4e8e\u662f\u5f15\u5165\u4e86\u4e00\u4e2a\u8f6f\u4ef6\u5c42\u9762\u7684\u6982\u5ff5\u2014\u2014\u5757（Block），\u5927\u5c0f\u901a\u5e38\u4e3a 4KB，\u5373\u8fde\u7eed 8 \u4e2a\u6247\u533a\u3002<\/p>\n

                    \u4e3a\u4ec0\u4e48\u9009 4KB？\u8fd9\u662f\u5927\u91cf\u5de5\u7a0b\u5b9e\u8df5\u7684\u7ed3\u679c，\u7c7b\u4f3c\u4e8e\u201c\u8ba1\u7b97\u673a\u91cc\u5f88\u591a\u503c\u90fd\u662f\u79d1\u5b66\u5bb6\u548c\u5de5\u7a0b\u5e08\u8bd5\u51fa\u6765\u7684\u201d\u3002\u4e00\u6b21 IO \u8bfb 8 \u4e2a\u6247\u533a，\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u541e\u5410\u91cf\u3002<\/p>\n

                    \u5730\u5740\u8f6c\u6362：<\/p>\n

                    \u5757\u53f7 = LBA \/ 8
                    \n\u5757\u5185\u504f\u79fb = LBA % 8<\/p>\n

                    \u4ece\u6b64\u4ee5\u540e，\u6587\u4ef6\u7cfb\u7edf\u5bf9\u78c1\u76d8\u7a7a\u95f4\u7684\u7ba1\u7406，\u672c\u8d28\u4e0a\u5c31\u53d8\u6210\u4e86\u5bf9\u201c\u5757\u201d\u7684\u7ba1\u7406\u2014\u2014\u54ea\u4e2a\u5757\u88ab\u5360\u7528\u4e86，\u54ea\u4e2a\u5757\u8fd8\u7a7a\u7740\u3002<\/p>\n

                    4.3 \u5206\u533a\u4e0e\u5757\u7ec4：\u7ba1\u7406 800GB \u78c1\u76d8\u7684\u56fd\u5bb6\u6cbb\u7406\u672f\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/h4>\n

                    \u4e00\u4e2a\u78c1\u76d8\u52a8\u8f84\u51e0\u767e GB \u751a\u81f3 TB，\u5982\u679c\u8ba9\u6587\u4ef6\u7cfb\u7edf\u76f4\u63a5\u7ba1\u7406\u6574\u4e2a\u78c1\u76d8，\u590d\u6742\u5ea6\u592a\u9ad8\u3002\u8001\u5e08\u7684\u7c7b\u6bd4\u975e\u5e38\u5f62\u8c61：<\/p>\n

                    \u7ba1\u7406 960 \u4e07\u5e73\u65b9\u516c\u91cc\u7684\u571f\u5730\u4e0d\u80fd\u76f4\u63a5\u7531\u4e2d\u592e\u7ba1\u5230\u5e95，\u8981\u5206\u7701\u3001\u5206\u5e02\u3001\u5206\u53bf\u3002<\/p>\n

                    \u5206\u533a（Partition）：\u628a\u78c1\u76d8\u5212\u5206\u4e3a\u82e5\u5e72\u72ec\u7acb\u903b\u8f91\u533a\u57df（\u6bd4\u5982\u4f60\u7684 C \u76d8\u3001D \u76d8\u3001E \u76d8，\u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u5757\u7269\u7406\u78c1\u76d8\u7684\u51e0\u4e2a\u5206\u533a）\u3002\u5206\u533a\u8868\u8bb0\u5f55\u6bcf\u4e2a\u5206\u533a\u7684\u8d77\u59cb\u5757\u53f7\u548c\u7ed3\u675f\u5757\u53f7\u3002<\/p>\n

                    \u5757\u7ec4（Block Group）：\u5728\u6bcf\u4e2a\u5206\u533a\u5185\u518d\u8fdb\u884c\u7ec6\u5206\u3002\u6bd4\u5982 300GB \u7684\u5206\u533a\u518d\u5207\u6210 10 \u4e2a 30GB \u7684\u5757\u7ec4\u3002\u6211\u4eec\u53ea\u8981\u8bbe\u8ba1\u51fa\u4e00\u5957\u7ba1\u7406\u597d\u201c\u4e00\u4e2a\u5757\u7ec4\u201d\u7684\u65b9\u6848，Ctrl+C \/ Ctrl+V \u5c31\u80fd\u7ba1\u7406\u597d\u6574\u4e2a\u5206\u533a\u4e43\u81f3\u6574\u5757\u78c1\u76d8\u3002<\/p>\n

                    \u96f6\u788e\u77e5\u8bc6\u70b9：Windows \u91cc\u7684 C \u76d8\u3001D \u76d8\u5e76\u4e0d\u662f\u771f\u7684\u6709\u4e09\u5757\u78c1\u76d8，\u800c\u662f\u64cd\u4f5c\u7cfb\u7edf\u201c\u6b3a\u9a97\u201d\u4e86\u4f60\u2014\u2014\u90a3\u53ea\u662f\u4e00\u5757\u78c1\u76d8\u4e0a\u7684\u4e0d\u540c\u5206\u533a\u3002<\/p>\n

                    \u8fd9\u79cd\u601d\u60f3\u53eb\u505a\u5206\u800c\u6cbb\u4e4b\u3002<\/p>\n

                    4.4 Linux \u6587\u4ef6\u7cfb\u7edf\u7684\u6838\u5fc3\u8bbe\u8ba1：\u5185\u5bb9\u4e0e\u5c5e\u6027\u5206\u79bb<\/h4>\n

                    \u8fdb\u5165 Linux \u6587\u4ef6\u7cfb\u7edf（\u4ee5 ext2（Second Extended File System）\u662f Linux \u7cfb\u7edf\u4e2d\u4e00\u79cd\u7ecf\u5178\u7684\u6587\u4ef6\u7cfb\u7edf） \u4e3a\u539f\u578b），\u6709\u4e00\u4e2a\u8d2f\u7a7f\u59cb\u7ec8\u7684\u8bbe\u8ba1\u7406\u5ff5：<\/p>\n

                    \u6587\u4ef6 = \u5185\u5bb9 + \u5c5e\u6027，\u4f46\u5185\u5bb9\u548c\u5c5e\u6027\u5728\u78c1\u76d8\u4e0a\u662f\u5206\u5f00\u5b58\u50a8\u7684\u3002<\/p>\n

                    \u5728\u4e00\u4e2a\u5757\u7ec4\u5185\u90e8，\u7a7a\u95f4\u88ab\u8fdb\u4e00\u6b65\u5212\u5206：<\/p>\n

                      \n
                    • Data Blocks（\u6570\u636e\u5757\u533a）：\u7531\u65e0\u6570\u4e2a 4KB \u5c0f\u5757\u7ec4\u6210，\u5b58\u653e\u6587\u4ef6\u7684\u5b9e\u9645\u5185\u5bb9\u3002\u5982\u679c\u4f60\u7684\u6587\u4ef6\u6709 16KB，\u5c31\u5360 4 \u4e2a\u6570\u636e\u5757；17KB \u5c31\u5360 5 \u4e2a（\u6700\u540e\u4e00\u4e2a\u5757\u53ea\u7528\u5230 1KB）\u3002<\/li>\n
                    • Inode Table（inode \u8868）：\u5b58\u653e\u6587\u4ef6\u7684\u5c5e\u6027\u3002\u6bcf\u4e2a\u6587\u4ef6\u90fd\u6709\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684\u5c5e\u6027\u7ed3\u6784\u4f53（\u901a\u5e38\u4e3a 128 \u5b57\u8282），\u91cc\u9762\u8bb0\u5f55\u4e86\u6587\u4ef6\u5927\u5c0f\u3001\u6743\u9650\u3001\u65f6\u95f4\u6233\u3001\u7c7b\u578b\u3001\u5f15\u7528\u8ba1\u6570\u7b49\u3002\u8fd9\u4e2a\u7ed3\u6784\u4f53\u88ab\u79f0\u4e3a inode（index node）\u3002<\/li>\n<\/ul>\n

                      \u5173\u952e\u7406\u89e3：<\/p>\n

                        \n
                      • \u6570\u636e\u5757\u91cc\u5b58\u7684\u662f\u201c\u4f60\u5199\u7684\u5b57\u7b26\u4e32\u3001\u56fe\u7247\u4e8c\u8fdb\u5236\u3001\u4ee3\u7801\u6587\u672c\u201d\u7b49\u5185\u5bb9\u6570\u636e；<\/li>\n
                      • inode \u8868\u91cc\u5b58\u7684\u662f\u201c\u8fd9\u4e2a\u6587\u4ef6\u662f\u8c01\u3001\u591a\u5927\u3001\u80fd\u4e0d\u80fd\u8bfb\u3001\u4ec0\u4e48\u65f6\u5019\u6539\u7684\u201d\u7b49\u5143\u6570\u636e（\u63cf\u8ff0\u6570\u636e\u7684\u6570\u636e）；<\/li>\n
                      • \u6587\u4ef6\u7cfb\u7edf\u901a\u8fc7 inode \u53bb\u7d22\u5f15\u5b83\u5bf9\u5e94\u7684\u6570\u636e\u5757，\u628a\u5c5e\u6027\u548c\u5185\u5bb9\u5173\u8054\u8d77\u6765\u3002<\/li>\n<\/ul>\n

                        \u96f6\u788e\u77e5\u8bc6\u70b9：\u5185\u5b58\u4e2d\u7684 struct file \u91cc\u5c31\u5305\u542b\u6307\u5411 inode \u548c\u5185\u6838\u7ea7\u7f13\u51b2\u533a\u7684\u6307\u9488，\u8fd9\u662f\u6253\u5f00\u6587\u4ef6\u540e\u5185\u6838\u7ef4\u62a4\u7684\u5185\u5b58\u6001\u526f\u672c；\u800c\u78c1\u76d8\u4e0a\u7684 inode \u662f\u6301\u4e45\u5316\u5b58\u50a8\u7684\u5c5e\u6027\u672c\u4f53\u3002<\/p>\n

                        \n

                        \u7ed3\u8bed：\u6ca1\u88ab\u6253\u5f00\u7684\u6587\u4ef6\u5728\u54ea\u91cc？<\/h3>\n

                        \u6700\u52a8\u4eba\u7684\u6536\u5c3e，\u7528\u83dc\u9e1f\u9a7f\u7ad9\u505a\u4e00\u6b21\u5b8f\u89c2\u603b\u7ed3：<\/p>\n

                          \n
                        • \u88ab\u6253\u5f00\u7684\u6587\u4ef6，\u5c31\u50cf\u5df2\u7ecf\u88ab\u4f60\u62ff\u5230\u624b\u7684\u5feb\u9012\u2014\u2014\u4f60\u53ef\u4ee5\u968f\u65f6\u8bfb\u5199\u5b83，\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7 struct file \u548c\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\u628a\u5b83\u7ba1\u7406\u5728\u5185\u5b58\u91cc；<\/li>\n
                        • \u800c\u7edd\u5927\u591a\u6570\u6587\u4ef6\u5176\u5b9e\u5e76\u6ca1\u6709\u88ab\u6253\u5f00，\u5b83\u4eec\u9759\u9759\u5730\u8eba\u5728\u78c1\u76d8\u4e0a，\u50cf\u9a7f\u7ad9\u4ed3\u5e93\u91cc\u5806\u79ef\u7684\u5305\u88f9\u3002<\/li>\n<\/ul>\n

                          \u6587\u4ef6\u7cfb\u7edf\u7684\u7ec8\u6781\u4f7f\u547d\u5c31\u662f：\u5728\u51e0\u5341\u4e07\u4e2a\u672a\u88ab\u6253\u5f00\u7684\u201c\u5305\u88f9\u201d\u4e2d，\u901a\u8fc7\u8def\u5f84（\u7edd\u5bf9\u8def\u5f84\/\u76f8\u5bf9\u8def\u5f84）\u8fd9\u79cd\u6811\u72b6\u7ed3\u6784，\u7cbe\u51c6\u3001\u5feb\u901f\u5730\u627e\u5230\u4f60\u8981\u7684\u90a3\u4e00\u4e2a，\u7b49\u4f60\u4e0b\u8fbe open \u6307\u4ee4\u65f6，\u628a\u5b83\u4ece\u78c1\u76d8\u52a0\u8f7d\u8fdb\u5185\u5b58，\u53d8\u6210\u88ab\u6253\u5f00\u7684\u6587\u4ef6\u3002<\/p>\n

                          \u4ece\u7528\u6237\u6001\u7684 my_file \u7f13\u51b2\u533a，\u5230\u78c1\u76d8\u7684 CHS \u4e09\u7ef4\u5bfb\u5740，\u518d\u5230 LBA \u7ebf\u6027\u62bd\u8c61，\u6700\u540e\u843d\u5730\u5230 4KB \u5757\u3001\u5206\u533a\u3001\u5757\u7ec4\u3001inode \u4e0e\u6570\u636e\u5757\u7684\u5206\u79bb\u5b58\u50a8\u2014\u2014\u8fd9\u4e00\u6574\u6761\u94fe\u8def，\u6b63\u662f\u64cd\u4f5c\u7cfb\u7edf\u5728\u201c\u6548\u7387\u201d\u4e0e\u201c\u590d\u6742\u5ea6\u201d\u4e4b\u95f4\u53cd\u590d\u6743\u8861\u7684\u827a\u672f\u3002<\/p>\n

                          \n

                          \u8bfe\u540e\u601d\u8003\u9898（\u6765\u81ea\u7ae0\u8282\u5f69\u86cb）：<\/p>\n

                          \u95ee\u9898：<\/p>\n

                        • \u4e3a\u4ec0\u4e48\u4f60\u7684 printf \u5728\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u540e，\u9047\u5230\u4e86 fork \u4f1a\u6253\u5370\u4e24\u6b21，\u800c write \u4e0d\u4f1a？<\/li>\n
                        • \u5982\u679c\u64cd\u4f5c\u7cfb\u7edf\u53ea\u8ba4 LBA，\u90a3\u4e48\u5f53\u4f60\u5411\u78c1\u76d8\u8bf7\u6c42\u201c\u5757\u53f7 3\u201d\u65f6，\u78c1\u76d8\u56fa\u4ef6\u5185\u90e8\u662f\u5982\u4f55\u9a71\u52a8\u78c1\u5934\u627e\u5230\u5bf9\u5e94\u6247\u533a\u7684？<\/li>\n
                        • \u4e3a\u4ec0\u4e48\u5206\u533a\u4e4b\u540e，\u7ba1\u7406\u6587\u4ef6\u7cfb\u7edf\u7684\u96be\u5ea6\u5c31\u4ece\u201c\u7ba1\u7406 800GB\u201d\u964d\u5230\u4e86\u201c\u7ba1\u7406 30GB\u201d？<\/li>\n

                          \u7cbe\u70bc\u89e3\u7b54：<\/p>\n

                        • \n

                          \u4e3a\u4ec0\u4e48 printf \u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u540e\u9047\u5230 fork \u4f1a\u6253\u5370\u4e24\u6b21，\u800c write \u4e0d\u4f1a？<\/p>\n

                            \n
                          • printf \u8d70\u7684\u662f C \u5e93\u7684\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u3002\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u65f6\u5237\u65b0\u7b56\u7565\u4ece\u884c\u7f13\u51b2\u5347\u7ea7\u4e3a\u5168\u7f13\u51b2，\u6570\u636e\u4e00\u76f4\u6512\u5728\u7528\u6237\u6001；fork \u540e\u7236\u5b50\u8fdb\u7a0b\u5404\u6301\u4e00\u4efd\u7f13\u51b2\u533a\u526f\u672c，\u7ed3\u675f\u65f6\u53cc\u53cc\u5237\u65b0，\u6240\u4ee5\u6253\u5370\u4e24\u6b21\u3002<\/li>\n
                          • write \u662f\u7cfb\u7edf\u8c03\u7528，\u76f4\u63a5\u8fdb\u5185\u6838\u7ea7\u7f13\u51b2\u533a，\u4e0d\u7ecf\u8fc7\u7528\u6237\u7ea7\u7f13\u51b2\u533a，fork \u65f6\u6ca1\u6709\u526f\u672c\u53ef\u590d\u5236，\u6240\u4ee5\u53ea\u6253\u5370\u4e00\u6b21\u3002<\/li>\n<\/ul>\n<\/li>\n
                          • \n

                            \u64cd\u4f5c\u7cfb\u7edf\u53ea\u8ba4 LBA，\u78c1\u76d8\u56fa\u4ef6\u5982\u4f55\u9a71\u52a8\u78c1\u5934\u627e\u5230\u201c\u5757\u53f7 3\u201d\u5bf9\u5e94\u7684\u6247\u533a？<\/p>\n

                              \n
                            • \u56fa\u4ef6\u628a LBA \u901a\u8fc7\u516c\u5f0f\u6362\u7b97\u56de CHS \u4e09\u7ef4\u5730\u5740：C = LBA \/\/ (\u78c1\u5934\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570)\u3001H = (LBA % (\u78c1\u5934\u6570 \u00d7 \u6bcf\u78c1\u9053\u6247\u533a\u6570)) \/\/ \u6bcf\u78c1\u9053\u6247\u533a\u6570\u3001S = (LBA % \u6bcf\u78c1\u9053\u6247\u533a\u6570) + 1\u3002<\/li>\n
                            • \u7136\u540e\u6446\u81c2\u4f38\u7f29\u5b9a\u4f4d\u5230\u5bf9\u5e94\u67f1\u9762，\u9009\u62e9\u5bf9\u5e94\u78c1\u5934，\u7b49\u76d8\u7247\u65cb\u8f6c\u5230\u76ee\u6807\u6247\u533a\u4e0b\u65b9\u5b8c\u6210\u8bfb\u5199\u3002\u8fd9\u4e2a\u8f6c\u6362\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u5168\u900f\u660e\u3002<\/li>\n<\/ul>\n<\/li>\n
                            • \n

                              \u4e3a\u4ec0\u4e48\u5206\u533a\u540e，\u7ba1\u7406\u96be\u5ea6\u4ece\u201c\u7ba1\u7406 800GB\u201d\u964d\u5230\u201c\u7ba1\u7406 30GB\u201d？<\/p>\n

                                \n
                              • \u8fd9\u662f\u5206\u800c\u6cbb\u4e4b\u7684\u601d\u60f3\u3002\u53ea\u8981\u8bbe\u8ba1\u51fa\u4e00\u5957\u7ba1\u7406\u597d\u4e00\u4e2a\u5757\u7ec4（\u5982 30GB）\u7684\u65b9\u6848，\u5c31\u80fd\u901a\u8fc7\u590d\u5236\u8fd9\u5957\u65b9\u6848\u7ba1\u7406\u6574\u4e2a\u5206\u533a\u4e43\u81f3\u6574\u5757\u78c1\u76d8，\u628a\u590d\u6742\u7684\u5927\u95ee\u9898\u62c6\u89e3\u6210\u53ef\u590d\u7528\u7684\u5c0f\u95ee\u9898，\u5927\u5e45\u964d\u4f4e\u7ba1\u7406\u590d\u6742\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n","protected":false},"excerpt":{"rendered":"

                                \u6536\u5c3e\u7528\u6237\u6001\u7f13\u51b2\u533a\u3001\u65b0\u5f00\u78c1\u76d8\u5757：\u4e00\u7ae0\u6253\u901a\u8f6f\u786c\u4ef6\u7684 Linux \u6587\u4ef6\u7cfb\u7edf\u7ae0\u8282\u4e3b\u7ebf：\u672c\u7ae0\u8282\u6ca1\u6709\u505c\u7559\u5728\u201c\u600e\u4e48\u5199\u4ee3\u7801\u201d，\u800c\u662f\u4e00\u6b21\u4ece\u4ee3\u7801\u5230\u7cfb\u7edf\u3001\u4ece\u7cfb\u7edf\u5230\u786c\u4ef6\u3001\u518d\u4ece\u786c\u4ef6\u56de\u5f52\u6587\u4ef6\u7cfb\u7edf\u7684\u89c6\u89d2\u62c9\u901a\u3002\u91cd\u70b9\u53ef\u4ee5\u5f52\u7eb3\u4e3a\u4e09\u5927\u5757：
                                \n\u7528\u6237\u7ea7\u7f13\u51b2\u533a\u673a\u5236\u2014\u2014\u901a\u8fc7\u624b\u5199\u4e00\u4e2a my_file \u5e93，\u7406\u89e3 fwrite \u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u5199\u78c1\u76d8；（\u4e0a\u7ae0\u6536\u5c3e\u5de5\u4f5c）\u78c1\u76d8\u7684\u7269\u7406\u7ed3\u6784\u4e0e\u903b\u8f91\u62bd\u8c61\u2014\u2014\u4ece\u76d8\u7247\u3001\u78c1\u5934\u3001\u67f1\u9762&#xff<\/p>\n","protected":false},"author":2,"featured_media":110603,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11653,58,50,43,305,44],"topic":[],"class_list":["post-110608","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-11653","tag-linux","tag-50","tag-43","tag-305","tag-44"],"yoast_head":"\n\u3010Linux\u7cfb\u7edf\u3011\u3010\u4ece\u3010\u6536\u5c3e\u3011\u7f13\u51b2\u533a\u5230\u3010\u65b0\u5f00\u3011\u78c1\u76d8\u5757\uff1a\u4e00\u8282\u8bfe\u6253\u901a\u6587\u4ef6\u7cfb\u7edf\u5e95\u5c42\u539f\u7406\u3011\u6d41\u98df\u822c\u6295\u5582 - 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