{"id":51103,"date":"2025-08-10T17:44:30","date_gmt":"2025-08-10T09:44:30","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/51103.html"},"modified":"2025-08-10T17:44:30","modified_gmt":"2025-08-10T09:44:30","slug":"%e4%bb%8e%e5%ad%97%e7%ac%a6%e5%88%b0%e6%95%b0%e5%ad%97%ef%bc%9a%e5%90%83%e9%80%8f-java-%e6%95%b0%e6%8d%ae%e5%ba%95%e5%b1%82%e5%ad%98%e5%82%a8%e7%9a%84%e6%a0%b8%e5%bf%83%e9%80%bb%e8%be%91%ef%bc%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/51103.html","title":{"rendered":"\u4ece\u5b57\u7b26\u5230\u6570\u5b57\uff1a\u5403\u900f Java \u6570\u636e\u5e95\u5c42\u5b58\u50a8\u7684\u6838\u5fc3\u903b\u8f91\uff0c\u521d\u5b66\u8005\u4e5f\u80fd\u79d2\u61c2\uff01"},"content":{"rendered":"<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4f5c\u4e3a\u4e00\u540d Java \u521d\u5b66\u8005&#xff0c;\u6211\u5e38\u5e38\u4f1a\u597d\u5947&#xff1a;\u6211\u4eec\u5728\u4ee3\u7801\u91cc\u5199\u4e0b\u7684\u5b57\u7b26\u3001\u6570\u5b57&#xff0c;\u5728\u8ba1\u7b97\u673a\u91cc\u5230\u5e95\u957f\u4ec0\u4e48\u6837&#xff1f;\u4e3a\u4ec0\u4e48\u6572\u4e00\u4e2a \u201cW\u201d \u80fd\u663e\u793a\u51fa\u6765&#xff0c;\u8f93\u5165 \u201cf\u201d \u80fd\u8df3\u51fa\u4e00\u4e32\u6c49\u5b57&#xff1f;\u76f4\u5230\u6628\u5929\u7684 Java \u8bfe\u4e0a&#xff0c;\u8001\u5e08\u62c6\u89e3\u4e86\u6570\u636e\u5728\u5e95\u5c42\u7684\u5b58\u50a8\u903b\u8f91&#xff0c;\u6211\u624d\u604d\u7136\u5927\u609f \u2014\u2014 \u539f\u6765\u90a3\u4e9b\u770b\u4f3c\u7b80\u5355\u7684\u5b57\u7b26\u548c\u6570\u5b57&#xff0c;\u80cc\u540e\u85cf\u7740\u4e00\u5957\u4e25\u8c28\u7684\u7f16\u7801\u89c4\u5219\u548c\u5b58\u50a8\u673a\u5236\u3002\u8fd9\u7bc7\u535a\u5ba2\u6574\u7406\u4e86\u6211\u8bfe\u5802\u7b14\u8bb0\u91cc\u6700\u6838\u5fc3\u7684\u5185\u5bb9&#xff0c;\u4ece char \u7c7b\u578b\u7684\u672c\u8d28\u5230\u8fdb\u5236\u8f6c\u6362\u7684\u7ec6\u8282&#xff0c;\u529b\u6c42\u7528\u6700\u901a\u4fd7\u7684\u8bed\u8a00\u8bb2\u6e05\u5e95\u5c42\u539f\u7406\u3002\u5982\u679c\u4f60\u4e5f\u548c\u6211\u4e00\u6837&#xff0c;\u5bf9 \u201c\u6570\u636e\u5728\u8ba1\u7b97\u673a\u91cc\u5982\u4f55\u5b58\u5728\u201d \u5145\u6ee1\u597d\u5947&#xff0c;\u90a3\u8fd9\u7bc7\u6587\u7ae0\u6216\u8bb8\u80fd\u5e2e\u4f60\u5c11\u8d70\u5f2f\u8def&#xff0c;\u4e00\u8d77\u592f\u5b9e Java \u57fa\u7840&#xff5e;<\/p>\n<h3>char \u7c7b\u578b\u7684\u5b58\u50a8\u672c\u8d28\u4e0e\u7f16\u7801\u67e5\u770b\u65b9\u6cd5<\/h3>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9996\u5148&#xff0c;\u6211\u4eec\u4ece Java \u4e2d\u7684 char \u7c7b\u578b\u8bf4\u8d77\u3002\u5f88\u591a\u4eba\u76f4\u89c2\u4e0a\u4f1a\u8ba4\u4e3a&#xff0c;char \u7c7b\u578b\u5b58\u50a8\u7684\u5c31\u662f\u6211\u4eec\u770b\u5230\u7684\u90a3\u4e9b\u5b57\u7b26\u56fe\u5f62&#xff0c;\u6bd4\u5982 &#039;W&#039;\u3001&#039;a&#039; \u8fd9\u4e9b&#xff0c;\u4f46\u5b9e\u9645\u4e0a\u5e76\u975e\u5982\u6b64\u3002char \u7c7b\u578b\u5728\u8ba1\u7b97\u673a\u4e2d\u7684\u5b58\u50a8\u672c\u8d28&#xff0c;\u662f\u8fd9\u4e9b\u5b57\u7b26\u5bf9\u5e94\u7684\u7f16\u7801&#xff0c;\u800c\u8fd9\u4e9b\u7f16\u7801\u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e32\u6570\u5b57\u3002\u6b63\u56e0\u4e3a char \u7c7b\u578b\u5b58\u50a8\u7684\u662f\u6570\u5b57&#xff0c;\u6240\u4ee5\u5b83\u624d\u80fd\u50cf\u666e\u901a\u6570\u5b57\u4e00\u6837\u8fdb\u884c\u52a0\u51cf\u4e58\u9664\u7b49\u8fd0\u7b97&#xff0c;\u8fd9\u4e00\u70b9\u5bf9\u4e8e\u7406\u89e3 char \u7c7b\u578b\u7684\u7279\u6027\u975e\u5e38\u5173\u952e\u3002<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u90a3\u4e48&#xff0c;\u6211\u4eec\u5982\u4f55\u67e5\u770b\u4e00\u4e2a\u5b57\u7b26\u5bf9\u5e94\u7684\u5177\u4f53\u7f16\u7801\u5462&#xff1f;\u5176\u5b9e\u53ef\u4ee5\u901a\u8fc7\u4e00\u6bb5\u7b80\u5355\u7684 Java \u7a0b\u5e8f\u6765\u5b9e\u73b0\u3002\u6bd4\u5982\u6211\u4eec\u60f3\u77e5\u9053\u5b57\u7b26 &#039;W&#039; \u7684\u7f16\u7801&#xff0c;\u5c31\u53ef\u4ee5\u8fd9\u6837\u5199\u4ee3\u7801&#xff1a;<\/p>\n<p>char k1 &#061; &#039;W&#039;;  \/\/ \u5b9a\u4e49\u4e00\u4e2a char \u7c7b\u578b\u53d8\u91cf k1&#xff0c;\u8d4b\u503c\u4e3a\u5b57\u7b26 &#039;W&#039;<br \/>\nint k2 &#061; k1;    \/\/ \u5c06 char \u7c7b\u578b\u7684 k1 \u8d4b\u503c\u7ed9 int \u7c7b\u578b\u7684 k2<br \/>\nSystem.out.println(k2);  \/\/ \u6253\u5370 k2 \u7684\u503c<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd0\u884c\u8fd9\u6bb5\u7a0b\u5e8f\u540e&#xff0c;\u63a7\u5236\u53f0\u4f1a\u8f93\u51fa 87&#xff0c;\u8fd9\u5c31\u610f\u5473\u7740\u5b57\u7b26 &#039;W&#039; \u5bf9\u5e94\u7684\u7f16\u7801\u662f 87\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f&#xff0c;\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u83b7\u53d6\u4efb\u610f\u5b57\u7b26\u7684\u7f16\u7801\u503c&#xff0c;\u4ece\u800c\u66f4\u76f4\u89c2\u5730\u7406\u89e3 \u201cchar \u7c7b\u578b\u5b58\u50a8\u7684\u662f\u7f16\u7801\u6570\u5b57\u201d \u8fd9\u4e00\u539f\u7406\u3002<\/p>\n<h3>\u6587\u672c\u6570\u636e\u5728\u78c1\u76d8\u4e0e\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u53ca\u89e3\u6790\u6d41\u7a0b<\/h3>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u63a5\u4e0b\u6765&#xff0c;\u6211\u4eec\u804a\u804a\u6587\u672c\u6570\u636e\u5728\u5b58\u50a8\u548c\u89e3\u6790\u8fc7\u7a0b\u4e2d\u7684\u5e95\u5c42\u903b\u8f91\u3002\u6211\u4eec\u5e73\u65f6\u7528\u8bb0\u4e8b\u672c\u7f16\u8f91\u6587\u5b57\u65f6&#xff0c;\u770b\u5230\u7684\u662f\u4e00\u4e2a\u4e2a\u5b57\u7b26\u56fe\u5f62&#xff0c;\u4f46\u8fd9\u4e9b\u5185\u5bb9\u5728\u78c1\u76d8\u4e2d\u7684\u5b58\u50a8\u5f62\u5f0f\u5e76\u4e0d\u662f\u8fd9\u4e9b\u56fe\u5f62\u672c\u8eab\u3002\u78c1\u76d8\u4f5c\u4e3a\u8ba1\u7b97\u673a\u7684\u5b58\u50a8\u8bbe\u5907&#xff0c;\u53ea\u80fd\u5b58\u50a8\u7531 0 \u548c 1 \u7ec4\u6210\u7684\u6bd4\u7279\u6d41&#xff0c;\u800c\u6587\u672c\u6570\u636e\u5728\u78c1\u76d8\u4e2d\u5b58\u50a8\u7684&#xff0c;\u6b63\u662f\u8fd9\u4e9b\u5b57\u7b26\u5bf9\u5e94\u7684\u7f16\u7801&#xff0c;\u8fd9\u4e9b\u7f16\u7801\u6700\u7ec8\u4e5f\u4f1a\u8f6c\u5316\u4e3a\u6bd4\u7279\u6d41\u7684\u5f62\u5f0f\u5b58\u5728\u3002\u8fd9\u91cc\u9700\u8981\u660e\u786e\u7684\u662f&#xff0c;\u6211\u4eec\u5e38\u542c\u5230\u7684 \u201c\u7f51\u7edc\u6d41\u201d\u201c\u5b57\u7b26\u6d41\u201d\u201c\u6587\u4ef6\u6d41\u201d\u201c\u5b57\u8282\u6d41\u201d \u7b49\u6982\u5ff5&#xff0c;\u672c\u8d28\u4e0a\u90fd\u662f\u8fd9\u79cd\u7531 0 \u548c 1 \u7ec4\u6210\u7684\u6bd4\u7279\u6d41&#xff0c;\u53ea\u662f\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u6709\u4e86\u4e0d\u540c\u7684\u79f0\u547c\u3002<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f53\u6211\u4eec\u6253\u5f00\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u65f6&#xff0c;\u78c1\u76d8\u4e2d\u7684\u6bd4\u7279\u6d41\u6570\u636e\u4f1a\u88ab\u52a0\u8f7d\u5230\u8ba1\u7b97\u673a\u7684\u5185\u5b58\u4e2d&#xff0c;\u5185\u5b58\u4f1a\u5bf9\u8fd9\u4e9b\u6bd4\u7279\u6d41\u8fdb\u884c\u89e3\u6790&#xff0c;\u6700\u7ec8\u8f6c\u5316\u4e3a\u6211\u4eec\u80fd\u770b\u61c2\u7684\u5b57\u7b26\u56fe\u5f62\u3002\u8fd9\u4e2a\u89e3\u6790\u8fc7\u7a0b\u662f\u6709\u660e\u786e\u89c4\u5219\u7684&#xff0c;\u4e0d\u540c\u7684\u7f16\u7801\u65b9\u5f0f&#xff08;\u6bd4\u5982 ASCII \u7801&#xff09;\u4f1a\u51b3\u5b9a\u5185\u5b58\u5982\u4f55\u622a\u53d6\u548c\u89e3\u6790\u6bd4\u7279\u6d41\u3002\u4ee5 ASCII \u7801\u4e3a\u4f8b&#xff0c;\u5b83\u89c4\u5b9a\u4e86\u6bcf 8 \u4f4d\u6bd4\u7279\u4f5c\u4e3a\u4e00\u4e2a\u57fa\u672c\u5355\u4f4d\u8fdb\u884c\u622a\u53d6&#xff0c;\u7136\u540e\u5c06\u622a\u53d6\u540e\u7684\u6bd4\u7279\u7247\u6bb5\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u6570\u5b57&#xff0c;\u5f62\u6210\u4e00\u4e2a\u6570\u7ec4\u3002\u6bd4\u5982\u4e00\u6bb5\u6bd4\u7279\u6d41\u53ef\u80fd\u88ab\u89e3\u6790\u6210\u6570\u7ec4 {20, 58, 46, 80}&#xff1a;<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"152\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250810094427-689869fbcebc0.png\" width=\"500\" \/><\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f97\u5230\u8fd9\u4e2a\u6570\u5b57\u6570\u7ec4\u540e&#xff0c;\u5185\u5b58\u4f1a\u6839\u636e\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u6570\u5b57&#xff0c;\u5230\u5bf9\u5e94\u7684\u7f16\u7801\u8868\u4e2d\u67e5\u627e\u5bf9\u5e94\u7684\u5b57\u7b26\u56fe\u5f62&#xff0c;\u6700\u540e\u5c06\u8fd9\u4e9b\u56fe\u5f62\u5c55\u793a\u5728\u5c4f\u5e55\u4e0a\u3002\u4e3a\u4e86\u66f4\u76f4\u89c2\u5730\u7406\u89e3\u8fd9\u4e2a\u8fc7\u7a0b&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u6bb5\u4ee3\u7801\u6765\u6a21\u62df\u89e3\u6790&#xff1a;<\/p>\n<p>byte[] arr &#061; {54, 76, 98, 88};  \/\/ \u5b9a\u4e49\u4e00\u4e2a byte \u6570\u7ec4&#xff0c;\u5b58\u50a8\u6570\u5b57 54\u300176\u300198\u300188<br \/>\nfor (int i &#061; 0; i &lt; arr.length; i&#043;&#043;) {  \/\/ \u904d\u5386\u6570\u7ec4<br \/>\n    int x1 &#061; arr[i];  \/\/ \u5c06 byte \u7c7b\u578b\u7684\u6570\u7ec4\u5143\u7d20\u8f6c\u6362\u4e3a int \u7c7b\u578b<br \/>\n    char x2 &#061; (char) x1;  \/\/ \u5c06 int \u7c7b\u578b\u7684\u6570\u5b57\u5f3a\u5236\u8f6c\u6362\u4e3a char \u7c7b\u578b<br \/>\n    System.out.println(x2);  \/\/ \u6253\u5370\u8f6c\u6362\u540e\u7684\u5b57\u7b26<br \/>\n}<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u540e&#xff0c;\u63a7\u5236\u53f0\u4f1a\u4f9d\u6b21\u8f93\u51fa 6\u3001L\u3001b\u3001x\u3002\u8fd9\u6e05\u6670\u5730\u5c55\u793a\u4e86\u6570\u5b57 54 \u5bf9\u5e94\u5b57\u7b26 &#039;6&#039;\u300176 \u5bf9\u5e94 &#039;L&#039;\u300198 \u5bf9\u5e94 &#039;b&#039;\u300188 \u5bf9\u5e94 &#039;x&#039; \u7684\u8fc7\u7a0b&#xff0c;\u4e5f\u5c31\u662f\u5185\u5b58\u6839\u636e\u6570\u5b57\u5230\u7f16\u7801\u8868\u4e2d\u67e5\u627e\u5bf9\u5e94\u56fe\u5f62\u7684\u5177\u4f53\u4f53\u73b0\u3002<\/p>\n<h3>\u8f93\u5165\u6cd5\u7684\u5de5\u4f5c\u539f\u7406&#xff08;\u57fa\u4e8e\u7f16\u7801\u6620\u5c04&#xff09;<\/h3>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6211\u4eec\u5728\u4f7f\u7528\u8f93\u5165\u6cd5\u8f93\u5165\u6c49\u5b57\u65f6&#xff0c;\u80cc\u540e\u4e5f\u79bb\u4e0d\u5f00\u7f16\u7801\u7684\u4f5c\u7528\u3002\u4ee5\u8f93\u5165\u62fc\u97f3 \u201cf\u201d \u4e3a\u4f8b&#xff0c;\u5f53\u6211\u4eec\u5728\u952e\u76d8\u4e0a\u6572\u4e0b \u201cf\u201d \u540e&#xff0c;\u7cfb\u7edf\u4f1a\u9996\u5148\u83b7\u53d6 \u201cf\u201d \u8fd9\u4e2a\u5b57\u7b26\u5bf9\u5e94\u7684\u7f16\u7801&#xff08;\u8fd9\u91cc\u6211\u4eec\u5047\u8bbe\u4e3a 01&#xff0c;\u5b9e\u9645\u7f16\u7801\u4f1a\u6839\u636e\u5177\u4f53\u7f16\u7801\u89c4\u5219\u786e\u5b9a&#xff09;\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250810094428-689869fc9742f.png\" \/><\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u63a5\u7740&#xff0c;\u7cfb\u7edf\u4f1a\u5728\u9884\u8bbe\u7684\u6570\u636e\u5e93\u4e2d&#xff0c;\u627e\u5230\u6240\u6709\u4ee5 \u201cf\u201d \u5f00\u5934\u7684\u62fc\u97f3&#xff0c;\u6bd4\u5982 \u201cfa\u201d\u201cfen\u201d\u201cfang\u201d\u201cfa\u201d \u7b49&#xff0c;\u8fd9\u4e9b\u62fc\u97f3\u5728\u8ba1\u7b97\u673a\u4e2d\u540c\u6837\u662f\u4ee5\u7f16\u7801\u5f62\u5f0f\u5b58\u5728\u7684\u3002\u6211\u4eec\u53ef\u4ee5\u5047\u8bbe \u201cfa\u201d \u5bf9\u5e94\u7684\u7f16\u7801\u662f 1001&#xff0c;\u201cfen\u201d \u5bf9\u5e94\u7684\u7f16\u7801\u662f 1011&#xff0c;\u201cfang\u201d \u5bf9\u5e94\u7684\u7f16\u7801\u662f 10011&#xff0c;\u8fd9\u4e9b\u7f16\u7801\u5c31\u50cf\u62fc\u97f3\u7684 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