{"id":1134908,"date":"2025-01-08T21:20:02","date_gmt":"2025-01-08T13:20:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1134908.html"},"modified":"2025-01-08T21:20:06","modified_gmt":"2025-01-08T13:20:06","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e5%81%9a%e4%ba%8c%e5%88%86%e6%b3%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1134908.html","title":{"rendered":"\u5982\u4f55\u7528python\u505a\u4e8c\u5206\u6cd5"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u505a\u4e8c\u5206\u6cd5\"<\/p>\n

\u4e8c\u5206\u6cd5\uff08Binary Search\uff09<\/strong>\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u67e5\u627e\u7b97\u6cd5\uff0c\u5b83\u7528\u4e8e\u5728\u4e00\u4e2a\u6709\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u76ee\u6807\u503c\u3002\u8be5\u7b97\u6cd5\u901a\u8fc7\u9010\u6b65\u7f29\u5c0f\u641c\u7d22\u8303\u56f4\u6765\u627e\u5230\u76ee\u6807\u503c\u3002Python<\/strong>\u63d0\u4f9b\u4e86\u4fbf\u5229\u7684\u8bed\u6cd5\u7ed3\u6784\uff0c\u4f7f\u5f97\u5b9e\u73b0\u4e8c\u5206\u6cd5\u53d8\u5f97\u76f8\u5bf9\u7b80\u5355\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Python\u5b9e\u73b0\u4e8c\u5206\u6cd5\uff0c\u5e76\u63a2\u8ba8\u5176\u5e94\u7528\u573a\u666f\u3001\u4f18\u5316\u65b9\u6cd5\u4ee5\u53ca\u5e38\u89c1\u95ee\u9898\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4e8c\u5206\u6cd5\u7684\u57fa\u672c\u539f\u7406<\/h3>\n<\/p>\n

\u4e8c\u5206\u6cd5\u7684\u57fa\u672c\u539f\u7406<\/strong>\u662f\u901a\u8fc7\u4e0d\u65ad\u5730\u5c06\u641c\u7d22\u8303\u56f4\u6298\u534a\u6765\u7f29\u5c0f\u76ee\u6807\u503c\u6240\u5728\u7684\u533a\u95f4\u3002\u8be5\u7b97\u6cd5\u9002\u7528\u4e8e\u6709\u5e8f\u6570\u7ec4\uff0c\u56e0\u4e3a\u5b83\u5229\u7528\u4e86\u6570\u7ec4\u7684\u6709\u5e8f\u6027\u6765\u5feb\u901f\u6392\u9664\u4e0d\u53ef\u80fd\u5305\u542b\u76ee\u6807\u503c\u7684\u534a\u90e8\u5206\u533a\u57df\u3002\u57fa\u672c\u6b65\u9aa4\u5305\u62ec\uff1a<\/strong><\/p>\n<\/p>\n

    \n
  1. \u521d\u59cb\u5316\u5de6\u53f3\u8fb9\u754c<\/strong>\uff1a\u8bbe\u7f6e\u4e24\u4e2a\u6307\u9488\uff0c\u5206\u522b\u6307\u5411\u6570\u7ec4\u7684\u6700\u5de6\u548c\u6700\u53f3\u5143\u7d20\u3002<\/li>\n
  2. \u8ba1\u7b97\u4e2d\u95f4\u4f4d\u7f6e<\/strong>\uff1a\u4f7f\u7528\u5de6\u53f3\u6307\u9488\u7684\u4e2d\u70b9\u4f5c\u4e3a\u5f53\u524d\u6bd4\u8f83\u7684\u4f4d\u7f6e\u3002<\/li>\n
  3. \u6bd4\u8f83\u4e2d\u95f4\u503c\u4e0e\u76ee\u6807\u503c<\/strong>\uff1a\u5982\u679c\u4e2d\u95f4\u503c\u7b49\u4e8e\u76ee\u6807\u503c\uff0c\u8fd4\u56de\u4e2d\u95f4\u4f4d\u7f6e\uff1b\u5982\u679c\u4e2d\u95f4\u503c\u5c0f\u4e8e\u76ee\u6807\u503c\uff0c\u8c03\u6574\u5de6\u8fb9\u754c\u5230\u4e2d\u95f4\u4f4d\u7f6e\u7684\u53f3\u4fa7\uff1b\u5982\u679c\u4e2d\u95f4\u503c\u5927\u4e8e\u76ee\u6807\u503c\uff0c\u8c03\u6574\u53f3\u8fb9\u754c\u5230\u4e2d\u95f4\u4f4d\u7f6e\u7684\u5de6\u4fa7\u3002<\/li>\n
  4. \u91cd\u590d\u4ee5\u4e0a\u6b65\u9aa4<\/strong>\uff1a\u76f4\u5230\u627e\u5230\u76ee\u6807\u503c\u6216\u5de6\u53f3\u8fb9\u754c\u4ea4\u53c9\uff0c\u8868\u793a\u76ee\u6807\u503c\u4e0d\u5b58\u5728\u3002<\/li>\n<\/ol>\n

    \u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u4e8c\u5206\u6cd5\u5c06\u641c\u7d22\u8303\u56f4\u8fc5\u901f\u7f29\u5c0f\u5230\u4e00\u534a\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(log N)\uff0c\u5176\u4e2dN\u4e3a\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/strong><\/p>\n<\/p>\n

    \u4e8c\u3001Python\u5b9e\u73b0\u4e8c\u5206\u6cd5<\/h3>\n<\/p>\n

    1\u3001\u57fa\u7840\u5b9e\u73b0<\/h4>\n<\/p>\n

    \u4ee5\u4e0b\u662fPython\u5b9e\u73b0\u4e8c\u5206\u6cd5\u7684\u57fa\u7840\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

    def binary_search(arr, target):<\/p>\n
        left, right = 0, len(arr) - 1<\/p>\n
        while left <= right:<\/p>\n
            mid = (left + right) \/\/ 2<\/p>\n
            if arr[mid] == target:<\/p>\n
                return mid<\/p>\n
            elif arr[mid] < target:<\/p>\n
                left = mid + 1<\/p>\n
            else:<\/p>\n
                right = mid - 1<\/p>\n
        return -1<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u6bb5\u4ee3\u7801\u5b9e\u73b0\u4e86\u6700\u57fa\u672c\u7684\u4e8c\u5206\u6cd5\u67e5\u627e\uff0c\u901a\u8fc7\u4e0d\u65ad\u8c03\u6574\u5de6\u53f3\u8fb9\u754c\u6765\u7f29\u5c0f\u641c\u7d22\u8303\u56f4<\/strong>\uff0c\u76f4\u5230\u627e\u5230\u76ee\u6807\u503c\u6216\u786e\u5b9a\u76ee\u6807\u503c\u4e0d\u5b58\u5728\u3002<\/p>\n<\/p>\n
    2\u3001\u9012\u5f52\u5b9e\u73b0<\/h4>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u4e5f\u53ef\u4ee5\u4f7f\u7528\u9012\u5f52\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
    def binary_search_recursive(arr, target, left, right):<\/p>\n
        if left > right:<\/p>\n
            return -1<\/p>\n
        mid = (left + right) \/\/ 2<\/p>\n
        if arr[mid] == target:<\/p>\n
            return mid<\/p>\n
        elif arr[mid] < target:<\/p>\n
            return binary_search_recursive(arr, target, mid + 1, right)<\/p>\n
        else:<\/p>\n
            return binary_search_recursive(arr, target, left, mid - 1)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u9012\u5f52\u8c03\u7528\u81ea\u8eab\u6765\u5b9e\u73b0\u4e8c\u5206\u67e5\u627e\uff0c\u903b\u8f91\u4e0a\u4e0e\u8fed\u4ee3\u65b9\u6cd5\u7c7b\u4f3c<\/strong>\uff0c\u4f46\u7ed3\u6784\u4e0a\u66f4\u7b80\u6d01\u3002<\/p>\n<\/p>\n
    \u4e09\u3001\u4e8c\u5206\u6cd5\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
    1\u3001\u5728\u6709\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u5143\u7d20<\/h4>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u6700\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u662f\u5728\u6709\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u5143\u7d20\uff0c\u5c24\u5176\u662f\u5728\u5927\u89c4\u6a21\u6570\u636e\u96c6\u4e0a\uff0c\u4e8c\u5206\u6cd5\u7684\u6548\u7387\u8fdc\u9ad8\u4e8e\u7ebf\u6027\u67e5\u627e\u3002<\/p>\n<\/p>\n
    2\u3001\u67e5\u627e\u63d2\u5165\u4f4d\u7f6e<\/h4>\n<\/p>\n
    \u5728\u8bb8\u591a\u7b97\u6cd5\u4e2d\uff0c\u9700\u8981\u627e\u5230\u4e00\u4e2a\u5143\u7d20\u5728\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u63d2\u5165\u4f4d\u7f6e\uff0c\u4e8c\u5206\u6cd5\u53ef\u4ee5\u5feb\u901f\u786e\u5b9a\u8fd9\u4e2a\u4f4d\u7f6e\u3002\u4f8b\u5982\u5728\u63d2\u5165\u6392\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8c\u5206\u6cd5\u6765\u52a0\u901f\u63d2\u5165\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
    3\u3001\u6c42\u89e3\u6700\u4f18\u5316\u95ee\u9898<\/h4>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6c42\u89e3\u4e00\u4e9b\u6700\u4f18\u5316\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u5728\u51fd\u6570\u5355\u8c03\u9012\u589e\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8c\u5206\u6cd5\u6765\u627e\u5230\u51fd\u6570\u503c\u7b49\u4e8e\u67d0\u4e2a\u76ee\u6807\u503c\u7684\u8f93\u5165\u3002<\/p>\n<\/p>\n
    \u56db\u3001\u4e8c\u5206\u6cd5\u7684\u4f18\u5316<\/h3>\n<\/p>\n
    1\u3001\u51cf\u5c11\u8ba1\u7b97\u6b21\u6570<\/h4>\n<\/p>\n
    \u5728\u4e00\u4e9b\u5b9e\u73b0\u4e2d\uff0c\u6bcf\u6b21\u8ba1\u7b97\u4e2d\u95f4\u4f4d\u7f6e\u65f6\u90fd\u9700\u8981\u8fdb\u884c\u6574\u6570\u9664\u6cd5<\/strong>\uff0c\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u51cf\u5c11\u8ba1\u7b97\u6b21\u6570\uff1a<\/p>\n<\/p>\n
    mid = left + (right - left) \/\/ 2<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u907f\u514d\u4e86\u76f4\u63a5\u76f8\u52a0\u53ef\u80fd\u5bfc\u81f4\u7684\u6574\u6570\u6ea2\u51fa\u95ee\u9898\u3002<\/p>\n<\/p>\n
    2\u3001\u5904\u7406\u91cd\u590d\u5143\u7d20<\/h4>\n<\/p>\n
    \u5728\u5b58\u5728\u91cd\u590d\u5143\u7d20\u7684\u60c5\u51b5\u4e0b\uff0c\u4e8c\u5206\u6cd5\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u8c03\u6574\u3002\u4f8b\u5982\uff0c\u67e5\u627e\u7b2c\u4e00\u4e2a\u6216\u6700\u540e\u4e00\u4e2a\u51fa\u73b0\u7684\u76ee\u6807\u503c\uff1a<\/p>\n<\/p>\n
    def binary_search_first(arr, target):<\/p>\n
        left, right = 0, len(arr) - 1<\/p>\n
        result = -1<\/p>\n
        while left <= right:<\/p>\n
            mid = (left + right) \/\/ 2<\/p>\n
            if arr[mid] == target:<\/p>\n
                result = mid<\/p>\n
                right = mid - 1<\/p>\n
            elif arr[mid] < target:<\/p>\n
                left = mid + 1<\/p>\n
            else:<\/p>\n
                right = mid - 1<\/p>\n
        return result<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u5728\u627e\u5230\u76ee\u6807\u503c\u65f6\u7ee7\u7eed\u5411\u5de6\u641c\u7d22\uff0c\u76f4\u5230\u627e\u5230\u7b2c\u4e00\u4e2a\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
    \u4e94\u3001\u4e8c\u5206\u6cd5\u7684\u5e38\u89c1\u95ee\u9898<\/h3>\n<\/p>\n
    1\u3001\u6570\u7ec4\u672a\u6392\u5e8f<\/h4>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u8981\u6c42\u6570\u7ec4\u662f\u6709\u5e8f\u7684\uff0c\u5982\u679c\u8f93\u5165\u6570\u7ec4\u672a\u6392\u5e8f\uff0c\u641c\u7d22\u7ed3\u679c\u5c06\u662f\u4e0d\u53ef\u9760\u7684\u3002\u56e0\u6b64\u5728\u4f7f\u7528\u4e8c\u5206\u6cd5\u524d\uff0c\u5fc5\u987b\u786e\u4fdd\u6570\u7ec4\u5df2\u7ecf\u6392\u5e8f\u3002<\/p>\n<\/p>\n
    2\u3001\u6574\u6570\u6ea2\u51fa<\/h4>\n<\/p>\n
    \u5728\u4e00\u4e9b\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u76f4\u63a5\u76f8\u52a0\u53ef\u80fd\u5bfc\u81f4\u6574\u6570\u6ea2\u51fa\u95ee\u9898\u3002\u867d\u7136Python\u7684\u6574\u6570\u6ca1\u6709\u6ea2\u51fa\u95ee\u9898\uff0c\u4f46\u5728\u5176\u4ed6\u8bed\u8a00\u4e2d\u5e94\u6ce8\u610f\u907f\u514d\u4f7f\u7528\u76f4\u63a5\u76f8\u52a0\u7684\u65b9\u5f0f\u8ba1\u7b97\u4e2d\u95f4\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
    3\u3001\u8fb9\u754c\u6761\u4ef6\u5904\u7406<\/h4>\n<\/p>\n
    \u5904\u7406\u8fb9\u754c\u6761\u4ef6\u662f\u5b9e\u73b0\u4e8c\u5206\u6cd5\u7684\u4e00\u4e2a\u96be\u70b9\uff0c\u5c24\u5176\u662f\u5728\u9012\u5f52\u5b9e\u73b0\u4e2d\uff0c\u9700\u8981\u4ed4\u7ec6\u5904\u7406\u5de6\u53f3\u8fb9\u754c\u7684\u66f4\u65b0\u6761\u4ef6\uff0c\u4ee5\u907f\u514d\u65e0\u9650\u5faa\u73af\u6216\u6808\u6ea2\u51fa\u3002<\/p>\n<\/p>\n
    \u516d\u3001\u4e8c\u5206\u6cd5\u7684\u5b9e\u9645\u5e94\u7528\u6848\u4f8b<\/h3>\n<\/p>\n
    1\u3001\u5728\u6392\u5e8f\u7b97\u6cd5\u4e2d\u7684\u5e94\u7528<\/h4>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u63d2\u5165\u6392\u5e8f\u4e2d\u7684\u63d2\u5165\u64cd\u4f5c\uff0c\u901a\u8fc7\u4f7f\u7528\u4e8c\u5206\u67e5\u627e\u627e\u5230\u63d2\u5165\u4f4d\u7f6e\uff0c\u4ece\u800c\u51cf\u5c11\u6bd4\u8f83\u6b21\u6570\uff1a<\/p>\n<\/p>\n
    def binary_insertion_sort(arr):<\/p>\n
        for i in range(1, len(arr)):<\/p>\n
            key = arr[i]<\/p>\n
            left, right = 0, i - 1<\/p>\n
            while left <= right:<\/p>\n
                mid = (left + right) \/\/ 2<\/p>\n
                if arr[mid] > key:<\/p>\n
                    right = mid - 1<\/p>\n
                else:<\/p>\n
                    left = mid + 1<\/p>\n
            for j in range(i, left, -1):<\/p>\n
                arr[j] = arr[j - 1]<\/p>\n
            arr[left] = key<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u5728\u6bcf\u6b21\u63d2\u5165\u65f6\u4f7f\u7528\u4e8c\u5206\u6cd5\u627e\u5230\u63d2\u5165\u4f4d\u7f6e\uff0c\u4ece\u800c\u52a0\u5feb\u6392\u5e8f\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n
    2\u3001\u5728\u641c\u7d22\u5f15\u64ce\u4e2d\u7684\u5e94\u7528<\/h4>\n<\/p>\n
    \u641c\u7d22\u5f15\u64ce\u9700\u8981\u5728\u5927\u91cf\u6570\u636e\u4e2d\u5feb\u901f\u67e5\u627e\u76f8\u5173\u4fe1\u606f\uff0c\u4e8c\u5206\u6cd5\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u7d22\u5f15\u67e5\u627e\u8fc7\u7a0b\u3002\u4f8b\u5982\u5728\u5012\u6392\u7d22\u5f15\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8c\u5206\u6cd5\u5feb\u901f\u627e\u5230\u5305\u542b\u67e5\u8be2\u8bcd\u7684\u6587\u6863\u5217\u8868\u3002<\/p>\n<\/p>\n
    \u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
    \u4e8c\u5206\u6cd5\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u67e5\u627e\u7b97\u6cd5\uff0c\u9002\u7528\u4e8e\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u67e5\u627e<\/strong>\u3002\u901a\u8fc7\u4e0d\u65ad\u7f29\u5c0f\u641c\u7d22\u8303\u56f4\uff0c\u4e8c\u5206\u6cd5\u80fd\u591f\u5728\u5bf9\u6570\u65f6\u95f4\u5185\u627e\u5230\u76ee\u6807\u503c\u3002\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u4e8c\u5206\u6cd5\u7684\u57fa\u672c\u539f\u7406\u3001Python\u5b9e\u73b0\u3001\u5e94\u7528\u573a\u666f\u3001\u4f18\u5316\u65b9\u6cd5\u4ee5\u53ca\u5e38\u89c1\u95ee\u9898\uff0c\u5e76\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\u5c55\u793a\u4e86\u4e8c\u5206\u6cd5\u5728\u6392\u5e8f\u7b97\u6cd5\u548c\u641c\u7d22\u5f15\u64ce\u4e2d\u7684\u5e94\u7528\u3002\u901a\u8fc7\u6df1\u5165\u7406\u89e3\u548c\u5b9e\u8df5\u4e8c\u5206\u6cd5\uff0c\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u66f4\u9ad8\u6548\u5730\u89e3\u51b3\u67e5\u627e\u95ee\u9898\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u4e8c\u5206\u6cd5\u7684\u57fa\u672c\u539f\u7406\u662f\u4ec0\u4e48\uff1f<\/strong>
    \u4e8c\u5206\u6cd5\u662f\u4e00\u79cd\u6709\u6548\u7684\u641c\u7d22\u7b97\u6cd5\uff0c\u9002\u7528\u4e8e\u5728\u5df2\u6392\u5e8f\u7684\u6570\u7ec4\u4e2d\u67e5\u627e\u7279\u5b9a\u503c\u3002\u5176\u57fa\u672c\u539f\u7406\u662f\u901a\u8fc7\u6bcf\u6b21\u5c06\u641c\u7d22\u533a\u95f4\u51cf\u534a\uff0c\u5feb\u901f\u7f29\u5c0f\u67e5\u627e\u8303\u56f4\u3002\u7b97\u6cd5\u9996\u5148\u6bd4\u8f83\u76ee\u6807\u503c\u4e0e\u4e2d\u95f4\u5143\u7d20\u7684\u5927\u5c0f\u5173\u7cfb\uff0c\u5982\u679c\u76ee\u6807\u503c\u5c0f\u4e8e\u4e2d\u95f4\u5143\u7d20\uff0c\u5219\u5728\u5de6\u534a\u90e8\u5206\u7ee7\u7eed\u67e5\u627e\uff1b\u5982\u679c\u5927\u4e8e\uff0c\u5219\u5728\u53f3\u534a\u90e8\u5206\u67e5\u627e\u3002\u5982\u6b64\u53cd\u590d\uff0c\u76f4\u5230\u627e\u5230\u76ee\u6807\u503c\u6216\u533a\u95f4\u4e3a\u7a7a\u4e3a\u6b62\u3002<\/p>\n
    \u5728\u4f7f\u7528Python\u5b9e\u73b0\u4e8c\u5206\u6cd5\u65f6\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u4e8b\u9879\uff1f<\/strong>
    \u5728\u5b9e\u73b0\u4e8c\u5206\u6cd5\u65f6\uff0c\u786e\u4fdd\u8f93\u5165\u7684\u5217\u8868\u662f\u5df2\u6392\u5e8f\u7684\uff0c\u8fd9\u662f\u6210\u529f\u5e94\u7528\u8be5\u7b97\u6cd5\u7684\u524d\u63d0\u3002\u6b64\u5916\uff0c\u8981\u6b63\u786e\u66f4\u65b0\u641c\u7d22\u533a\u95f4\u7684\u8d77\u59cb\u548c\u7ed3\u675f\u4f4d\u7f6e\uff0c\u907f\u514d\u65e0\u9650\u5faa\u73af\u6216\u6570\u7ec4\u8d8a\u754c\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e00\u4e2a\u5408\u9002\u7684\u6761\u4ef6\u6765\u7ed3\u675f\u5faa\u73af\uff0c\u4f8b\u5982\u5f53\u8d77\u59cb\u7d22\u5f15\u5927\u4e8e\u7ed3\u675f\u7d22\u5f15\u65f6\uff0c\u8868\u793a\u67e5\u627e\u5931\u8d25\u3002<\/p>\n
    \u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u4e8c\u5206\u6cd5\u7684\u4ee3\u7801\u793a\u4f8b\uff1f<\/strong>
    \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Python\u5b9e\u73b0\u7684\u4e8c\u5206\u6cd5\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
    def binary_search(arr, target):\n    left, right = 0, len(arr) - 1\n    while left <= right:\n        mid = left + (right - left) \/\/ 2\n        if arr[mid] == target:\n            return mid  # \u627e\u5230\u76ee\u6807\u503c\uff0c\u8fd4\u56de\u7d22\u5f15\n        elif arr[mid] < target:\n            left = mid + 1  # \u5728\u53f3\u534a\u90e8\u5206\u7ee7\u7eed\u67e5\u627e\n        else:\n            right = mid - 1  # \u5728\u5de6\u534a\u90e8\u5206\u7ee7\u7eed\u67e5\u627e\n    return -1  # \u672a\u627e\u5230\u76ee\u6807\u503c\n\n# \u793a\u4f8b\u7528\u6cd5\narr = [1, 2, 3, 4, 5, 6, 7, 8, 9]\ntarget = 5\nresult = binary_search(arr, target)\nprint(f"\u76ee\u6807\u503c {target} \u7684\u7d22\u5f15\u4e3a: {result}")\n<\/code><\/pre>\n
    \u8fd9\u6bb5\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u4e8c\u5206\u67e5\u627e\u51fd\u6570\u5e76\u8fdb\u884c\u641c\u7d22\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4fee\u6539\u6570\u7ec4\u548c\u76ee\u6807\u503c\uff0c\u4ee5\u6d4b\u8bd5\u4e0d\u540c\u7684\u60c5\u51b5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4e8c\u5206\u6cd5\uff08Binary Search\uff09\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u67e5\u627e\u7b97\u6cd5\uff0c\u5b83\u7528\u4e8e\u5728\u4e00\u4e2a\u6709\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u76ee\u6807\u503c\u3002\u8be5\u7b97\u6cd5\u901a\u8fc7\u9010\u6b65\u7f29\u5c0f […]","protected":false},"author":3,"featured_media":1134923,"comment_status":"closed","ping_status":"","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\/1134908"}],"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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1134908"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1134908\/revisions"}],"predecessor-version":[{"id":1134926,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1134908\/revisions\/1134926"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1134923"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1134908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1134908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1134908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}