{"id":17726,"date":"2023-02-20T16:54:07","date_gmt":"2023-02-20T08:54:07","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=17726"},"modified":"2023-02-20T16:54:11","modified_gmt":"2023-02-20T08:54:11","slug":"java%e5%92%8cc%e8%af%ad%e8%a8%80%e5%a4%9a%e7%bb%b4%e6%95%b0%e7%bb%84%e7%9a%84%e5%ae%9e%e8%b4%a8%e6%98%af%e4%bb%80%e4%b9%88%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/17726.html","title":{"rendered":"JAVA\u548cC\u8bed\u8a00\u591a\u7ef4\u6570\u7ec4\u7684\u5b9e\u8d28\u662f\u4ec0\u4e48\u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"\n
\n

JAVA\u548cC\u8bed\u8a00\u591a\u7ef4\u6570\u7ec4\u7684\u5b9e\u8d28\u662fc\u6570\u7ec4\u8fde\u7eed\u5206\u5e03\uff0cjava\u6570\u7ec4\u5230\u5904\u5206\u5e03\u3002\u533a\u522b\u662fjava\u7684\u6570\u7ec4\u5176\u5b9e\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u56e0\u4e3a\u5176\u4e2d\u4e0d\u53ea\u662f\u5305\u542b\u6570\u636e\u4fe1\u606f\uff0c\u8fd8\u5305\u62ec\u6570\u7ec4\u7684\u957f\u5ea6\u7b49\u5176\u4ed6\u4fe1\u606f\u3002<\/p>\n<\/blockquote>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u4e00\u3001JAVA\u548cC\u8bed\u8a00\u591a\u7ef4\u6570\u7ec4<\/strong><\/h2>\n\n\n\n

\u5b9e\u8d28\u662fc\u6570\u7ec4\u8fde\u7eed\u5206\u5e03\uff0cjava\u6570\u7ec4\u5230\u5904\u5206\u5e03\u3002<\/p>\n\n\n\n

\u533a\u522b\u662fjava\u7684\u6570\u7ec4\u5176\u5b9e\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u56e0\u4e3a\u5176\u4e2d\u4e0d\u53ea\u662f\u5305\u542b\u6570\u636e\u4fe1\u606f\uff0c\u8fd8\u5305\u62ec\u6570\u7ec4\u7684\u957f\u5ea6\u7b49\u5176\u4ed6\u4fe1\u606f\u3002\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0cc\u8bed\u8a00\u4e2d\uff0cint a[5],\u8981\u7528for\u5faa\u73af\u6765\u4e3a\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\uff0c\u53ea\u80fdfor(i=0;i<5;i++) scanf(“%d”,&a[i]);\u800c\u5728java\u4e2d\uff0c\u53ef\u4ee5\u8fd9\u6837\uff0cint[] a=new int[5],for(i=0;i<a.length;i++) system.out.println(a[i])\u3002<\/p>\n\n\n\n

c<\/strong>\u8bed\u8a00\u4e2d\u521b\u5efa\u6570\u7ec4<\/strong><\/h3>\n\n\n\n

int a1[N][M];<\/p>\n\n\n\n

\u4e0e\u4e0b\u9762\u8fd9\u6837\u4e0d\u540c<\/p>\n\n\n\n

int **a2 = (int**)malloc(N*sizeof(int*));<\/p>\n\n\n\n

for(int i=0;i<N;++i)<\/p>\n\n\n\n

a2[i] = (int*)malloc(M*sizeof(int));<\/p>\n\n\n\n

\u4e24\u8005\u90fd\u4e3a\u6570\u7ec4a\u5206\u914d\u4e86N*M*sizeof(int)\u7684\u7a7a\u95f4\u3002<\/p>\n\n\n\n

\u4e0d\u540c\u7684\u662f\u524d\u8005\u662f\u8fde\u7eed\u7684\u7a7a\u95f4\uff0c\u540e\u8005\u662f\u4e0d\u8fde\u7eed\u7684\uff1b<\/p>\n\n\n\n

\u4e14a1\u662f\u6570\u7ec4\u5e38\u91cf\uff0ca2\u662f\u4e00\u4e2a\u6307\u5411\u67d0\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684\u6307\u9488\uff0c\u6545a1\u53ea\u8bfb\uff0ca2\u53ef\u4ee5\u6539\u53d8\u3002<\/p>\n\n\n\n

\u8fd9\u6837\u4e5f\u5c31\u9020\u6210\u4e86c\u8bed\u8a00\u4e2d\u76f4\u63a5\u521b\u5efa\u7684\u591a\u7ef4\u6570\u7ec4\uff08\u524d\u8005\uff09\u6bcf\u4e2a\u7ef4\u5ea6\u7684\u5927\u5c0f\u4e0d\u80fd\u6539\u53d8\u3002<\/p>\n\n\n\n


java<\/strong>\u4e2d\u521b\u5efa\u6570\u7ec4<\/strong><\/h3>\n\n\n\n

int[][] a1 = new int[N][M];<\/p>\n\n\n\n

\u53ef\u4ee5\u7406\u89e3\u4e3a\u4e0a\u8ff0c\u8bed\u8a00\u4e2d\u7684<\/p>\n\n\n\n

int **a2 = (int**)malloc(N*sizeof(int*));<\/p>\n\n\n\n

for(int i=0;i<N;++i)<\/p>\n\n\n\n

a2[i] = (int*)malloc(M*sizeof(int));<\/p>\n\n\n\n

java\u4e2d\u7684\u6570\u7ec4\u540d\u5373\u6307\u9488 \u4e5f\u5c31\u662f\u8bf4\u4e24\u8005\u7b49\u4ef7\u3002<\/p>\n\n\n\n

\u800c\u6307\u9488\u4e0e\u5e38\u91cf\u4e0d\u540c\u7684\u662f \u6307\u9488\u7684\u503c\u53ef\u4ee5\u6539\u5440\u3002 (\u2035\u25bd\u2032)\/\u60f3\u6307\u54ea\u5c31\u6307\u54ea\u3002<\/p>\n\n\n\n

\u6240\u4ee5\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4e00\u7ef4\u6570\u7ec4<\/p>\n\n\n\n

int[] b = new int[M+1];<\/p>\n\n\n\n

\u5c06\u6570\u7ec4\u540d\uff08\u6307\u9488\uff09a[N-1]\u6307\u5411\u6570\u7ec4b\uff0c\u5373<\/p>\n\n\n\n

a1[N-1] = b;<\/p>\n\n\n\n

\u8fd9\u5c31\u9020\u6210\u4e86java\u4e2d\u7684\u6570\u7ec4\u5404\u4e2a\u7ef4\u5ea6\u7684\u5927\u5c0f\u53ef\u4ee5\u4e0d\u540c\u5566_(:\u0437\u300d\u2220)_<\/p>\n\n\n\n

\u5f53\u7136c\u4e5f\u53ef\u4ee5\u8fbe\u5230\u6539\u53d8\u7ef4\u5ea6\u5927\u5c0f\u7684\u6548\u679c\uff0c\u6bd4\u5982<\/p>\n\n\n\n

int **a = (int**)malloc(N*sizeof(int*));<\/p>\n\n\n\n

for(int i=0;i<N;++i)<\/p>\n\n\n\n

a[i] = (int*)malloc(M*sizeof(int));<\/p>\n\n\n\n

int *b = (int*)malloc((M+1)*sizeof(int));<\/p>\n\n\n\n

a[N-1] = b;<\/p>\n\n\n\n

\u5ef6\u4f38\u9605\u8bfb\uff1a<\/strong><\/p>\n\n\n\n

\u4e8c\u3001Java\u548cC\u8bed\u8a00\u6709\u4ec0\u4e48\u533a\u522b<\/strong><\/h2>\n\n\n\n

C++\u662f\u6df7\u5408\u578b\u8bed\u8a00\uff0cjava\u662f\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\u3002\u5f88\u591a\u4e66\u4e2d\u5427C++\u4f5c\u4e3a\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\u6765\u8bb2\uff0c\u4f46\u662f\u5b9e\u9645\u4e0aC++\u4e0d\u662f\u7eaf\u79cd\u7684\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\u3002java\u662f\u9762\u5411\u5bf9\u8c61\u7684\u4ee3\u8868\u3002\u5982\u679c\u4f60\u542c\u8bf4\u8fc7C#\u7684\u8bdd\uff0c\u90a3\u4e48C#\u662f\u9762\u5411\u5bf9\u8c61\u7684\u7ec8\u7ed3\u3002<\/p>\n\n\n\n

\u5f53\u7136\u8fd9\u4e9b\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\u4e0d\u592a\u660e\u4e86\u4ec0\u4e48\u662f\u9762\u5411\u5bf9\u8c61\u3001\u4ec0\u4e48\u662f\u9762\u5411\u8fc7\u7a0b\u3002\u800c\u6211\u5728\u8fd9\u91cc\u89e3\u91ca\u4e5f\u4f1a\u8ba9\u4f60\u66f4\u52a0\u61f5\u61c2\u3002\u6240\u4ee5\u6487\u5f00\u4ec0\u4e48\u662f\u9762\u5411\u5bf9\u8c61\u4ec0\u4e48\u662f\u9762\u5411\u8fc7\u7a0b\uff0c\u5355\u5355\u4ecb\u7ecd\u4ed6\u4eec\u5b9e\u9645\u5e94\u7528\u533a\u522b\uff1a<\/p>\n\n\n\n

C\u662f\u4e00\u95e8\u975e\u5e38\u5e72\u7ec3\u7684\u8bed\u8a00\uff0c\u4e00\u5207\u91c7\u7528\u51fd\u6570\u7684\u5f62\u5f0f\u5b8c\u6210\uff0c\u4f60\u53ef\u4ee5\u628a\u6240\u6709\u9700\u8981\u7684\u529f\u80fd\u91c7\u7528\u51fd\u6570\u7684\u5f62\u5f0f\u5b8c\u6210\uff0c\u7136\u540e\u5728\u4e3b\u51fd\u6570main\u4e2d\u8c03\u7528\u3002\u5b66\u8d77\u6765\u5bb9\u6613\uff0c\u51e0\u4e4e\u7528\u4e09\u4e24\u5929\u5c31\u53ef\u4ee5\u5b66\u4f1a\u3002\u4e00\u822c\u7528\u6765\u6559\u5b66\u5b66\u4e60\u7b97\u6cd5\uff0c\u6570\u636e\u7ed3\u6784\u7b49\u3002\u540c\u6837\u8fd9\u4e5f\u9020\u6210\u4e86\u5b83\u7684\u5e94\u7528\u8303\u56f4\u5c40\u9650\u5728\u5c0f\u7a0b\u5e8f\u4e2d\uff0c\u53ea\u80fd\u662f\u9488\u5bf9\u5c0f\u89c4\u6a21\u7684\u4e1c\u897f\u5f00\u53d1\uff1a\u6bd4\u5982DOS\u7a0b\u5e8f\uff0c\u5d4c\u5165\u5f0f\u5f00\u53d1\u7b49\u3002<\/p>\n\n\n\n

C++\u662f\u5728C\u8bed\u8a00\u7684\u57fa\u7840\u4e0a\u6269\u5c55\u7684\uff0c\u6240\u4ee5\u4e00\u822cC++\u4f1a\u517c\u5bb9C\u8bed\u8a00\u5e93\u3002C++\u662f\u56e0\u4e3a\u7528C\u8bed\u8a00\u5f00\u53d1\u9879\u76ee\u4e2d\u4f1a\u9047\u5230\u5f88\u591a\u56e2\u961f\u5408\u4f5c\u95ee\u9898\uff0c\u5bfc\u81f4\u56e2\u961f\u7684\u5de5\u4f5c\u6548\u7387\u4e0b\u964d\u3002\u5728\u6b64\u57fa\u7840\u4e0a\u8feb\u5207\u9700\u8981\u964d\u4f4e\u8f6f\u4ef6\u5f00\u53d1\u56e2\u961f\u6210\u5458\u4e4b\u95f4\u5f7c\u6b64\u7684\u5e72\u6270\u6027\uff0c\u4f7f\u5f97\u6bcf\u4e2a\u5de5\u7a0b\u4eba\u5458\u7684\u4ee3\u7801\u7adf\u53ef\u80fd\u4e0d\u5f71\u54cd\u4ed6\u4eba\u3002\u6700\u540eC++\u4fbf\u5e94\u7528\u800c\u751f\u4e86\u3002C++\u4e3b\u8981\u662f\u5176\u4e2d\u96c6\u6210\u4e86\u7c7b\u5730\u6982\u5ff5\uff0c\u53ef\u4ee5\u5c06\u6240\u6709\u7684\u4e1c\u897f\u5c01\u88c5\u5728\u7c7b\u4e2d\uff0c\u7c7b\u4e2d\u7684\u79c1\u6709\u6210\u5458\u4e0d\u53ef\u88ab\u522b\u4eba\u8bbf\u95ee\uff0c\u8fd9\u6837\u5c31\u6709\u6548\u5730\u89e3\u51b3\u4e86\u4ee3\u7801\u4e92\u5e72\u6270\u6027\u3002<\/p>\n\n\n\n

java\u662f\u6c72\u53d6C++\u7684\u957f\u5904\u800c\u8bde\u751f\u7684\uff0c\u8fd9\u4e2a\u8bed\u8a00\u91c7\u7528\u5b8c\u5168\u9762\u5411\u5bf9\u8c61\u7684\u6982\u5ff5\uff0c\u5c06\u6240\u6709\u7684\u529f\u80fd\u5c01\u88c5\u5728\u7c7b\u4e2d\uff0c\u800c\u4e0d\u50cfC++\u90e8\u5206\u5c01\u88c5\u3002\u7531\u4e8ejava\u91c7\u7528\u8de8\u5e73\u53f0\u6027\uff0c\u4f7f\u5f97\u66f4\u5bb9\u6613\u88ab\u79fb\u690d\uff0c\u5728\u4e92\u8054\u7f51\u8981\u6c42\u591a\u7ec8\u7aef\u80fd\u591f\u4e92\u76f8\u8bbf\u95ee\u6210\u4e3a\u53ef\u80fd\uff0c\u8fd9\u4fbf\u5f62\u6210\u4e86java\u5e73\u53f0\u4eca\u65e5\u7684\u76db\u51b5\uff0c\u5728\u4e92\u8054\u7f51\u65b9\u9762\u51e0\u4e4e\u65e0\u4eba\u53ef\u654c\u3002<\/p>\n\n\n\n

\u5b66\u4e60\u96be\u6613\u7a0b\u5ea6\u6765\u8bb2C++\u975e\u5e38\u96be\uff0c\u5373\u4f7f\u67095\u5e74\u5de5\u4f5c\u7ecf\u9a8c\u7684C++\u5de5\u7a0b\u5e08\u4e5f\u672a\u5fc5\u80fd\u591f\u719f\u7ec3\u5e94\u7528C++\uff0cC\u8bed\u8a00\u6613\u638c\u63e1\uff0c\u4f46\u662f\u5e94\u7528\u8d77\u6765\u96be\u5ea6\u4e0d\u4e0b\u4e8eC++\uff0c\u56e0\u4e3aC\u8bed\u8a00\u51e0\u4e4e\u662f\u5bf9\u786c\u4ef6\u76f4\u63a5\u5199\u4ee3\u7801\uff0c\u4e00\u822c\u6765\u8bf4\u4f1a\u4f7f\u5f97\u4ee3\u7801\u975e\u5e38\u5e9e\u5927\uff0c\u589e\u52a0\u4e86\u5f00\u53d1\u4eba\u5458\u7684\u5de5\u4f5c\u91cf\u3002java\u56e0\u4e3a\u5c01\u88c5\u4e86\u5f88\u591a\u529f\u80fd\uff0c\u6240\u4ee5\u51e0\u4e4e\u5f00\u53d1\u6548\u7387\u76f8\u5f53\u9ad8\u3002<\/p>\n\n\n\n

\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8eJAVA\u548cC\u8bed\u8a00\u591a\u7ef4\u6570\u7ec4\u7684\u5b9e\u8d28\u662f\u4ec0\u4e48\u6709\u4ec0\u4e48\u533a\u522b\u7684\u5185\u5bb9\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"JAVA\u548cC\u8bed\u8a00\u591a\u7ef4\u6570\u7ec4\u7684\u5b9e\u8d28\u662fc\u6570\u7ec4\u8fde\u7eed\u5206\u5e03\uff0cjava\u6570\u7ec4\u5230\u5904\u5206\u5e03\u3002\u533a\u522b\u662fjava\u7684\u6570\u7ec4\u5176\u5b9e\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u56e0\u4e3a […]","protected":false},"author":1,"featured_media":17728,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/17726"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=17726"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/17726\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/17728"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=17726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=17726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=17726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}