{"id":37332,"date":"2025-05-15T22:27:19","date_gmt":"2025-05-15T14:27:19","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/37332.html"},"modified":"2025-05-15T22:27:19","modified_gmt":"2025-05-15T14:27:19","slug":"%e6%8e%92%e5%ba%8f%e7%ae%97%e6%b3%95-%e9%80%89%e6%8b%a9%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/37332.html","title":{"rendered":"\u6392\u5e8f\u7b97\u6cd5-\u9009\u62e9\u6392\u5e8f"},"content":{"rendered":"

\u9009\u62e9\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u76f4\u89c2\u7684\u6392\u5e8f\u7b97\u6cd5，\u5176\u6838\u5fc3\u601d\u60f3\u662f\u6bcf\u6b21\u4ece\u672a\u6392\u5e8f\u7684\u90e8\u5206\u4e2d\u9009\u51fa\u6700\u5c0f（\u6216\u6700\u5927）\u7684\u5143\u7d20，\u653e\u5230\u5df2\u6392\u5e8f\u90e8\u5206\u7684\u672b\u5c3e\u3002<\/p>\n

\u9009\u62e9\u6392\u5e8f\u6b65\u9aa4<\/h4>\n
  • \n

    \u521d\u59cb\u5316：\u5c06\u5e8f\u5217\u5206\u4e3a\u5df2\u6392\u5e8f\u90e8\u5206（\u521d\u59cb\u4e3a\u7a7a）\u548c\u672a\u6392\u5e8f\u90e8\u5206（\u521d\u59cb\u4e3a\u6574\u4e2a\u5e8f\u5217）\u3002<\/p>\n<\/li>\n

  • \n

    \u67e5\u627e\u6700\u5c0f\u503c：\u904d\u5386\u672a\u6392\u5e8f\u90e8\u5206，\u627e\u5230\u6700\u5c0f\u7684\u5143\u7d20\u3002<\/p>\n<\/li>\n

  • \n

    \u4ea4\u6362\u4f4d\u7f6e：\u5c06\u6700\u5c0f\u5143\u7d20\u4e0e\u672a\u6392\u5e8f\u90e8\u5206\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u4ea4\u6362，\u5c06\u5176\u7eb3\u5165\u5df2\u6392\u5e8f\u90e8\u5206\u3002<\/p>\n<\/li>\n

  • \n

    \u91cd\u590d\u8fc7\u7a0b：\u91cd\u590d\u4e0a\u8ff0\u6b65\u9aa4，\u76f4\u5230\u672a\u6392\u5e8f\u90e8\u5206\u4e3a\u7a7a\u3002<\/p>\n<\/li>\n

    \"\"<\/p>\n

    \u4ee3\u7801\u5b9e\u73b0<\/h4>\n

    package Sort;<\/p>\n

    public class SelectionSort {
    \n public static void main(String[] args) {
    \n int[] res = getSelectionSort(new int[]{3,44,38,5,47,15,36,26,27,2,46,4,19,50,48});
    \n for (int i = 0; i < res.length; i++) {
    \n System.out.print(res[i] + " ");
    \n }
    \n }
    \n \/\/\u5347\u5e8f\u6392\u5217，\u67e5\u627e\u6700\u5c0f\u503c，\u5982\u679c\u964d\u5e8f\u6392\u5217，\u5219\u67e5\u627e\u6700\u5927\u503c
    \n public static int[] getSelectionSort(int[] nums){
    \n int len = nums.length;
    \n for (int i = 0; i < len; i++) {
    \n int minIndex = i;\/\/\u6700\u5c0f\u6570\u7684\u4e0b\u6807，\u6bcf\u6b21\u5faa\u73af\u5f00\u59cb\u603b\u662f\u5047\u8bbe\u7b2c\u4e00\u4e2a\u6570\u6700\u5c0f
    \n for (int j = i+1; j < len; j++) {\/\/\u6bcf\u6b21\u5faa\u73af，\u67e5\u627e\u5269\u4f59\u7684\u6570\u7684\u6700\u5c0f\u503c
    \n if (nums[j] < nums[minIndex]){
    \n minIndex = j; \/\/\u5c06\u6700\u5c0f\u6570\u7684\u5c0f\u6807\u4fdd\u5b58
    \n }
    \n }
    \n \/\/\u9000\u51fa\u5185\u5faa\u73af，\u5219\u8bf4\u660e\u627e\u5230\u5269\u4f59\u6570\u7684\u6700\u5c0f\u503c
    \n \/\/\u5c06\u5f53\u524d\u6570\u4e0e\u6700\u5c0f\u503c\u8fdb\u884c\u4ea4\u6362
    \n int temp = nums[minIndex];
    \n nums[minIndex] = nums[i];
    \n nums[i] = temp;
    \n }
    \n return nums;
    \n }
    \n}<\/p>\n

    \u65f6\u95f4\u590d\u6742\u5ea6<\/h4>\n
  • \n

    \u6700\u574f\u60c5\u51b5：\u65e0\u8bba\u8f93\u5165\u662f\u5426\u6709\u5e8f，\u6bcf\u6b21\u90fd\u9700\u8981\u5b8c\u6574\u904d\u5386\u672a\u6392\u5e8f\u90e8\u5206\u3002<\/p>\n

      \n
    • \n

      \u6bd4\u8f83\u6b21\u6570：(n-1) + (n-2) + … + 1 = n(n-1)\/2，\u5373\u00a0O(n\u00b2)\u3002<\/p>\n<\/li>\n

    • \n

      \u4ea4\u6362\u6b21\u6570：\u6bcf\u6b21\u904d\u5386\u6700\u591a\u4ea4\u6362\u4e00\u6b21，\u5171\u00a0n-1\u00a0\u6b21，\u5373\u00a0O(n)\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

    • \n

      \u6700\u597d\u60c5\u51b5：\u5373\u4f7f\u5e8f\u5217\u5df2\u7ecf\u6709\u5e8f，\u4ecd\u9700\u5b8c\u6210\u6240\u6709\u6bd4\u8f83，\u56e0\u6b64\u4ecd\u662f\u00a0O(n\u00b2)\u3002<\/p>\n<\/li>\n

    • \n

      \u5e73\u5747\u60c5\u51b5：\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a\u00a0O(n\u00b2)\u3002<\/p>\n<\/li>\n

      \u7a7a\u95f4\u590d\u6742\u5ea6<\/h4>\n
        \n
      • \n

        \u9009\u62e9\u6392\u5e8f\u662f\u539f\u5730\u6392\u5e8f，\u4ec5\u9700\u5e38\u6570\u7ea7\u989d\u5916\u7a7a\u95f4（\u7528\u4e8e\u4e34\u65f6\u4ea4\u6362），\u56e0\u6b64\u7a7a\u95f4\u590d\u6742\u5ea6\u4e3a\u00a0O(1)\u3002<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb393\u6b21\uff0c\u70b9\u8d5e10\u6b21\uff0c\u6536\u85cf4\u6b21\u3002\u9009\u62e9\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u76f4\u89c2\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5176\u6838\u5fc3\u601d\u60f3\u662f\u3002<\/p>\n","protected":false},"author":2,"featured_media":37331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,3226,3227],"topic":[],"class_list":["post-37332","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-3226","tag-3227"],"yoast_head":"\n\u6392\u5e8f\u7b97\u6cd5-\u9009\u62e9\u6392\u5e8f - \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\/37332.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6392\u5e8f\u7b97\u6cd5-\u9009\u62e9\u6392\u5e8f - 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