{"id":217,"date":"2023-06-14T23:01:00","date_gmt":"2023-06-14T15:01:00","guid":{"rendered":"https:\/\/www.gzlcy.cn\/?p=217"},"modified":"2023-06-14T23:01:00","modified_gmt":"2023-06-14T15:01:00","slug":"qsort%e7%bb%93%e6%9e%84%e4%bd%93%e6%8e%92%e5%ba%8f_%e7%94%a8c%e6%a0%87%e5%87%86%e5%ba%93%e4%b8%ad%e7%9a%84qsort%e5%87%bd%e6%95%b0%e5%ae%9e%e7%8e%b0%e7%ba%bf%e6%80%a7%e6%8f%92%e5%80%bc%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.gzlcy.cn\/?p=217","title":{"rendered":"qsort\u7ed3\u6784\u4f53\u6392\u5e8f_\u7528C\u6807\u51c6\u5e93\u4e2d\u7684qsort\u51fd\u6570\u5b9e\u73b0\u7ebf\u6027\u63d2\u503c\u6cd5\u6c42\u503c"},"content":{"rendered":"<p>\u597d\u7684\uff0c\u5173\u4e8eC\u8bed\u8a00\u4e2d\u4f7f\u7528q<a href='https:\/\/www.gzlcy.cn\/?p=202' title='sort' target='_blank' rel=\"noopener\">sort<\/a>\u5bf9\u7ed3\u6784\u4f53\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u9996\u5148\uff0c\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6bd4\u8f83\u51fd\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u6392\u5e8f\u7684\u89c4\u5219\u3002\u6bd4\u8f83\u51fd\u6570\u9700\u8981\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff0c\u5206\u522b\u662f\u5f85\u6bd4\u8f83\u7684\u4e24\u4e2a\u7ed3\u6784\u4f53\u6307\u9488\uff0c\u8fd4\u56de\u4e00\u4e2a\u6574\u578b\u503c\u3002\u5982\u679c\u8fd4\u56de\u503c\u5c0f\u4e8e0\uff0c\u5219\u8868\u793a\u7b2c\u4e00\u4e2a\u53c2\u6570\u5e94\u8be5\u6392\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e4b\u524d\uff1b\u5982\u679c\u8fd4\u56de\u503c\u5927\u4e8e0\uff0c\u5219\u8868\u793a\u7b2c\u4e00\u4e2a\u53c2\u6570\u5e94\u8be5\u6392\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e4b\u540e\uff1b\u5982\u679c\u8fd4\u56de\u503c\u7b49\u4e8e0\uff0c\u5219\u8868\u793a\u4e24\u4e2a\u53c2\u6570\u76f8\u7b49\uff0c\u4e0d\u9700\u8981\u4ea4\u6362\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u5982\u4e0b\u7684\u7ed3\u6784\u4f53\u5b9a\u4e49\uff1a&#8220;`struct student {char name[20];int age;float score;};&#8220;`\u90a3\u4e48\u5bf9\u5e94\u7684\u6bd4\u8f83\u51fd\u6570\u53ef\u4ee5\u5b9a\u4e49\u5982\u4e0b\uff1a&#8220;`int cmp(const void* a, const void* b) {struct student* s1 = (struct student*)a;struct student* s2 = (struct student*)b;if (s1-&gt;score &gt; s2-&gt;score) {return -1;} else if (s1-&gt;score score) {return 1;} else {return 0;}}&#8220;`\u4e0a\u9762\u7684\u6bd4\u8f83\u51fd\u6570\u6307\u5b9a\u4e86\u6309\u7167\u5206\u6570\u4ece\u9ad8\u5230\u4f4e\u6392\u5e8f\u3002\u7136\u540e\uff0c\u5728\u4e3b\u51fd\u6570\u4e2d\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u7ed3\u6784\u4f53\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528qsort\u51fd\u6570\u8fdb\u884c\u6392\u5e8f\u3002qsort\u51fd\u6570\u9700\u8981\u56db\u4e2a\u53c2\u6570\uff0c\u5206\u522b\u662f\u5f85\u6392\u5e8f\u7684\u6570\u7ec4\u9996\u5730\u5740\u3001\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3001\u6bcf\u4e2a\u5143\u7d20\u7684\u5927\u5c0f\u3001\u6bd4\u8f83\u51fd\u6570\u7684\u5730\u5740\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u5b9a\u4e49\u4e86\u5982\u4e0b\u7684\u7ed3\u6784\u4f53\u6570\u7ec4\uff1a&#8220;`struct student students[] = {{&#8220;Tom&#8221;, 18, 89},{&#8220;Bob&#8221;, 20, 78},{&#8220;Alice&#8221;, 19, 92},{&#8220;Mike&#8221;, 19, 83},{&#8220;Jack&#8221;, 18, 87},};int n = sizeof(students) \/ sizeof(struct student);&#8220;`\u90a3\u4e48\u5bf9\u5e94\u7684\u6392\u5e8f\u4ee3\u7801\u53ef\u4ee5\u5982\u4e0b\u7f16\u5199\uff1a&#8220;`qsort(students, n, sizeof(struct student), cmp);&#8220;`\u7ecf\u8fc7\u6392\u5e8f\u540e\uff0c\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6309\u7167\u6307\u5b9a\u7684\u89c4\u5219\u6392\u5217\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u70b9\u51fb\u4e0a\u65b9\u516c\u4f17\u53f7\u540d\u79f0\u5173\u6ce8\uff0c\u83b7\u5f97\u66f4\u591a\u5185\u5bb9\u270e\u7f16 \u8005 \u609f \u8bed  \u751f\u6d3b\u6709\u65f6\u8981\u5f97\u5c31\u662f\u4e00\u80a1\u52b2\uff0c\u8fdb\u884c\u4e00\u6b21\u6b21\u7684\u51b2\u950b\u3002\u6587 \u7ae0 \u5bfc \u8bfb\u4eca\u5929\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e0b\u7ebf\u6027\u63d2\u503c\u6cd5\u7684\u7528\u6cd5<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[359,396],"_links":{"self":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts\/217"}],"collection":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=217"}],"version-history":[{"count":0,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=\/wp\/v2\/posts\/217\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=217"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gzlcy.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}