{"id":1052450,"date":"2024-12-31T14:25:07","date_gmt":"2024-12-31T06:25:07","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1052450.html"},"modified":"2024-12-31T14:25:10","modified_gmt":"2024-12-31T06:25:10","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e5%87%a0%e4%b8%aa%e4%b8%8d%e9%87%8d%e5%a4%8d%e7%9a%84%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1052450.html","title":{"rendered":"Python\u5982\u4f55\u5224\u65ad\u51e0\u4e2a\u4e0d\u91cd\u590d\u7684\u6570"},"content":{"rendered":"

\"Python\u5982\u4f55\u5224\u65ad\u51e0\u4e2a\u4e0d\u91cd\u590d\u7684\u6570\"<\/p>\n

Python\u5224\u65ad\u51e0\u4e2a\u6570\u662f\u5426\u4e0d\u91cd\u590d\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u3001\u5b57\u5178\u3001\u6392\u5e8f\u7b49\u65b9\u6cd5<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528\u96c6\u5408\u662f\u6700\u7b80\u5355\u548c\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u662f\u552f\u4e00\u7684\uff0c\u901a\u8fc7\u5c06\u6570\u5b57\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u53ef\u4ee5\u8f7b\u677e\u5224\u65ad\u662f\u5426\u5b58\u5728\u91cd\u590d\u7684\u6570\u5b57\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/p>\n<\/p>\n

\u4f7f\u7528\u96c6\u5408\u7684\u65b9\u6cd5\uff1a\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u6bd4\u8f83\u96c6\u5408\u548c\u5217\u8868\u7684\u957f\u5ea6\uff0c\u5982\u679c\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n

\u4f7f\u7528\u96c6\u5408\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n

\u96c6\u5408\u662f\u4e00\u79cd\u65e0\u5e8f\u4e14\u4e0d\u91cd\u590d\u7684\u5143\u7d20\u96c6\u5408\u3002Python\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u96c6\u5408\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5224\u65ad\u5217\u8868\u4e2d\u7684\u5143\u7d20\u662f\u5426\u552f\u4e00\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

def are_numbers_unique(numbers):<\/p>\n
    return len(numbers) == len(set(numbers))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570are_numbers_unique<\/code>\uff0c\u8be5\u51fd\u6570\u5c06\u8f93\u5165\u7684\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u5e76\u6bd4\u8f83\u5217\u8868\u548c\u96c6\u5408\u7684\u957f\u5ea6\u3002\u5982\u679c\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6240\u6709\u6570\u5b57\u90fd\u662f\u552f\u4e00\u7684\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u5b57\u5178\u8ba1\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u5b57\u5178\u662f\u4e00\u79cd\u952e\u503c\u5bf9\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u6765\u7edf\u8ba1\u6bcf\u4e2a\u6570\u5b57\u51fa\u73b0\u7684\u6b21\u6570\u3002\u901a\u8fc7\u904d\u5386\u5217\u8868\uff0c\u7edf\u8ba1\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u5982\u679c\u6240\u6709\u6570\u5b57\u90fd\u53ea\u51fa\u73b0\u4e00\u6b21\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    number_count = {}<\/p>\n
    for number in numbers:<\/p>\n
        if number in number_count:<\/p>\n
            return False<\/p>\n
        number_count[number] = 1<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5b57\u5178number_count<\/code>\u6765\u8bb0\u5f55\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\u3002\u5982\u679c\u53d1\u73b0\u67d0\u4e2a\u6570\u5b57\u5df2\u7ecf\u5728\u5b57\u5178\u4e2d\u5b58\u5728\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5982\u679c\u904d\u5386\u7ed3\u675f\u540e\u6ca1\u6709\u53d1\u73b0\u91cd\u590d\u6570\u5b57\uff0c\u5219\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u6392\u5e8f\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u53e6\u4e00\u4e2a\u65b9\u6cd5\u662f\u5148\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\uff0c\u7136\u540e\u904d\u5386\u6392\u5e8f\u540e\u7684\u5217\u8868\uff0c\u68c0\u67e5\u76f8\u90bb\u7684\u4e24\u4e2a\u5143\u7d20\u662f\u5426\u76f8\u7b49\u3002\u5982\u679c\u5b58\u5728\u76f8\u7b49\u7684\u76f8\u90bb\u5143\u7d20\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    sorted_numbers = sorted(numbers)<\/p>\n
    for i in range(1, len(sorted_numbers)):<\/p>\n
        if sorted_numbers[i] == sorted_numbers[i - 1]:<\/p>\n
            return False<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5148\u5bf9\u8f93\u5165\u7684\u5217\u8868\u8fdb\u884c\u6392\u5e8f\uff0c\u7136\u540e\u904d\u5386\u6392\u5e8f\u540e\u7684\u5217\u8868\uff0c\u68c0\u67e5\u76f8\u90bb\u7684\u4e24\u4e2a\u5143\u7d20\u662f\u5426\u76f8\u7b49\u3002\u5982\u679c\u5b58\u5728\u76f8\u7b49\u7684\u76f8\u90bb\u5143\u7d20\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5982\u679c\u904d\u5386\u7ed3\u675f\u540e\u6ca1\u6709\u53d1\u73b0\u76f8\u7b49\u7684\u76f8\u90bb\u5143\u7d20\uff0c\u5219\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u96c6\u5408\u4ea4\u96c6\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u96c6\u5408\u4ea4\u96c6\u64cd\u4f5c\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u4e24\u4e2a\u96c6\u5408\u662f\u5426\u6709\u91cd\u590d\u5143\u7d20\u3002\u901a\u8fc7\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u5e76\u8ba1\u7b97\u4e24\u4e2a\u96c6\u5408\u7684\u4ea4\u96c6\uff0c\u53ef\u4ee5\u5224\u65ad\u662f\u5426\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    num_set = set(numbers)<\/p>\n
    return len(numbers) == len(num_set)<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u8f93\u5165\u7684\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u7136\u540e\u6bd4\u8f83\u5217\u8868\u548c\u96c6\u5408\u7684\u957f\u5ea6\u3002\u5982\u679c\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u9012\u5f52\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u9012\u5f52\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u7f16\u7a0b\u6280\u672f\uff0c\u53ef\u4ee5\u7528\u6765\u89e3\u51b3\u8bb8\u591a\u95ee\u9898\uff0c\u5305\u62ec\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u901a\u8fc7\u9012\u5f52\u5730\u68c0\u67e5\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u5224\u65ad\u662f\u5426\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    if len(numbers) <= 1:<\/p>\n
        return True<\/p>\n
    if numbers[0] in numbers[1:]:<\/p>\n
        return False<\/p>\n
    return are_numbers_unique(numbers[1:])<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u9012\u5f52\u51fd\u6570are_numbers_unique<\/code>\u6765\u68c0\u67e5\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u5982\u679c\u5217\u8868\u7684\u957f\u5ea6\u5c0f\u4e8e\u7b49\u4e8e1\uff0c\u5219\u8bf4\u660e\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u552f\u4e00\u7684\uff0c\u8fd4\u56deTrue<\/code>\uff1b\u5982\u679c\u5217\u8868\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5728\u5269\u4f59\u7684\u5143\u7d20\u4e2d\u5b58\u5728\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5426\u5219\uff0c\u9012\u5f52\u5730\u68c0\u67e5\u5269\u4f59\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 itertools \u6a21\u5757\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684itertools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u8fed\u4ee3\u5668\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u89e3\u51b3\u8bb8\u591a\u95ee\u9898\uff0c\u5305\u62ec\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u901a\u8fc7\u4f7f\u7528itertools.combinations<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u751f\u6210\u6240\u6709\u53ef\u80fd\u7684\u5143\u7d20\u7ec4\u5408\uff0c\u5e76\u68c0\u67e5\u662f\u5426\u5b58\u5728\u91cd\u590d\u5143\u7d20\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
import itertools<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    for a, b in itertools.combinations(numbers, 2):<\/p>\n
        if a == b:<\/p>\n
            return False<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528itertools.combinations<\/code>\u51fd\u6570\u751f\u6210\u6240\u6709\u53ef\u80fd\u7684\u5143\u7d20\u7ec4\u5408\uff0c\u5e76\u68c0\u67e5\u662f\u5426\u5b58\u5728\u76f8\u7b49\u7684\u5143\u7d20\u3002\u5982\u679c\u5b58\u5728\u76f8\u7b49\u7684\u5143\u7d20\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5982\u679c\u904d\u5386\u7ed3\u675f\u540e\u6ca1\u6709\u53d1\u73b0\u76f8\u7b49\u7684\u5143\u7d20\uff0c\u5219\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 Counter \u6a21\u5757\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684collections<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3aCounter<\/code>\u7684\u7c7b\uff0c\u53ef\u4ee5\u7528\u6765\u7edf\u8ba1\u5143\u7d20\u7684\u51fa\u73b0\u6b21\u6570\u3002\u901a\u8fc7\u4f7f\u7528Counter<\/code>\u7c7b\uff0c\u53ef\u4ee5\u8f7b\u677e\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
from collections import Counter<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    counter = Counter(numbers)<\/p>\n
    return all(count == 1 for count in counter.values())<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Counter<\/code>\u7c7b\u7edf\u8ba1\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u5e76\u68c0\u67e5\u6240\u6709\u51fa\u73b0\u6b21\u6570\u662f\u5426\u90fd\u4e3a1\u3002\u5982\u679c\u6240\u6709\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\u90fd\u4e3a1\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u96c6\u5408\u64cd\u4f5c\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u96c6\u5408\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u64cd\u4f5c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u7684union<\/code>\u64cd\u4f5c\uff0c\u5c06\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u5e76\u68c0\u67e5\u96c6\u5408\u7684\u5927\u5c0f\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    num_set = set()<\/p>\n
    for number in numbers:<\/p>\n
        if number in num_set:<\/p>\n
            return False<\/p>\n
        num_set.add(number)<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u96c6\u5408num_set<\/code>\u6765\u8bb0\u5f55\u5df2\u7ecf\u51fa\u73b0\u7684\u6570\u5b57\u3002\u5982\u679c\u67d0\u4e2a\u6570\u5b57\u5df2\u7ecf\u5728\u96c6\u5408\u4e2d\u5b58\u5728\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5426\u5219\uff0c\u5c06\u6570\u5b57\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\uff0c\u5e76\u7ee7\u7eed\u68c0\u67e5\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u5e03\u5c14\u6570\u7ec4\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u5e03\u5c14\u6570\u7ec4\u662f\u4e00\u79cd\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u7528\u6765\u8bb0\u5f55\u6bcf\u4e2a\u6570\u5b57\u662f\u5426\u5df2\u7ecf\u51fa\u73b0\u3002\u901a\u8fc7\u4f7f\u7528\u5e03\u5c14\u6570\u7ec4\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    max_num = max(numbers)<\/p>\n
    seen = [False] * (max_num + 1)<\/p>\n
    for number in numbers:<\/p>\n
        if seen[number]:<\/p>\n
            return False<\/p>\n
        seen[number] = True<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5e03\u5c14\u6570\u7ec4seen<\/code>\u6765\u8bb0\u5f55\u6bcf\u4e2a\u6570\u5b57\u662f\u5426\u5df2\u7ecf\u51fa\u73b0\u3002\u5982\u679c\u67d0\u4e2a\u6570\u5b57\u5df2\u7ecf\u5728\u5e03\u5c14\u6570\u7ec4\u4e2d\u6807\u8bb0\u4e3aTrue<\/code>\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5426\u5219\uff0c\u5c06\u6570\u5b57\u6807\u8bb0\u4e3aTrue<\/code>\uff0c\u5e76\u7ee7\u7eed\u68c0\u67e5\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 lambda \u51fd\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684lambda<\/code>\u51fd\u6570\u662f\u4e00\u79cd\u533f\u540d\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u6765\u5b9a\u4e49\u7b80\u6d01\u7684\u51fd\u6570\u3002\u901a\u8fc7\u4f7f\u7528lambda<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
are_numbers_unique = lambda numbers: len(numbers) == len(set(numbers))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528lambda<\/code>\u51fd\u6570\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7b80\u6d01\u7684\u51fd\u6570are_numbers_unique<\/code>\uff0c\u8be5\u51fd\u6570\u5c06\u8f93\u5165\u7684\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\uff0c\u5e76\u6bd4\u8f83\u5217\u8868\u548c\u96c6\u5408\u7684\u957f\u5ea6\u3002\u5982\u679c\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u5d4c\u5957\u5faa\u73af\u662f\u4e00\u79cd\u7b80\u5355\u4f46\u6548\u7387\u8f83\u4f4e\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u901a\u8fc7\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\uff0c\u53ef\u4ee5\u904d\u5386\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u68c0\u67e5\u662f\u5426\u5b58\u5728\u76f8\u7b49\u7684\u5143\u7d20\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    for i in range(len(numbers)):<\/p>\n
        for j in range(i + 1, len(numbers)):<\/p>\n
            if numbers[i] == numbers[j]:<\/p>\n
                return False<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u68c0\u67e5\u662f\u5426\u5b58\u5728\u76f8\u7b49\u7684\u5143\u7d20\u3002\u5982\u679c\u5b58\u5728\u76f8\u7b49\u7684\u5143\u7d20\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5982\u679c\u904d\u5386\u7ed3\u675f\u540e\u6ca1\u6709\u53d1\u73b0\u76f8\u7b49\u7684\u5143\u7d20\uff0c\u5219\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 reduce \u51fd\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684functools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3areduce<\/code>\u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u6765\u5bf9\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u5f52\u7ea6\u64cd\u4f5c\u3002\u901a\u8fc7\u4f7f\u7528reduce<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
from functools import reduce<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    def reducer(acc, number):<\/p>\n
        if number in acc:<\/p>\n
            return acc<\/p>\n
        acc.add(number)<\/p>\n
        return acc<\/p>\n
    return len(numbers) == len(reduce(reducer, numbers, set()))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528reduce<\/code>\u51fd\u6570\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u5f52\u7ea6\u4e3a\u4e00\u4e2a\u96c6\u5408\uff0c\u5e76\u6bd4\u8f83\u5217\u8868\u548c\u96c6\u5408\u7684\u957f\u5ea6\u3002\u5982\u679c\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 numpy \u6a21\u5757\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684numpy<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u7ec4\u64cd\u4f5c\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u6765\u9ad8\u6548\u5730\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u3002\u901a\u8fc7\u4f7f\u7528numpy<\/code>\u6a21\u5757\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
import numpy as np<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    return len(numbers) == len(np.unique(numbers))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528numpy<\/code>\u6a21\u5757\u7684np.unique<\/code>\u51fd\u6570\u8ba1\u7b97\u5217\u8868\u4e2d\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\uff0c\u5e76\u6bd4\u8f83\u5217\u8868\u548c\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\u3002\u5982\u679c\u6570\u91cf\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 pandas \u6a21\u5757\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684pandas<\/code>\u6a21\u5757\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6570\u636e\u5206\u6790\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u9ad8\u6548\u5730\u5904\u7406\u6570\u636e\u3002\u901a\u8fc7\u4f7f\u7528pandas<\/code>\u6a21\u5757\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
import pandas as pd<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    return len(numbers) == len(pd.unique(numbers))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528pandas<\/code>\u6a21\u5757\u7684pd.unique<\/code>\u51fd\u6570\u8ba1\u7b97\u5217\u8868\u4e2d\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\uff0c\u5e76\u6bd4\u8f83\u5217\u8868\u548c\u552f\u4e00\u5143\u7d20\u7684\u6570\u91cf\u3002\u5982\u679c\u6570\u91cf\u76f8\u540c\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 setdefault \u65b9\u6cd5\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
\u5b57\u5178\u7684setdefault<\/code>\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u901a\u8fc7\u4f7f\u7528setdefault<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u8bb0\u5f55\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u5e76\u5224\u65ad\u662f\u5426\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    num_dict = {}<\/p>\n
    for number in numbers:<\/p>\n
        if num_dict.setdefault(number, 0):<\/p>\n
            return False<\/p>\n
        num_dict[number] = 1<\/p>\n
    return True<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5b57\u5178\u7684setdefault<\/code>\u65b9\u6cd5\u8bb0\u5f55\u6bcf\u4e2a\u6570\u5b57\u7684\u51fa\u73b0\u6b21\u6570\u3002\u5982\u679c\u67d0\u4e2a\u6570\u5b57\u5df2\u7ecf\u5728\u5b57\u5178\u4e2d\u5b58\u5728\uff0c\u5219\u8bf4\u660e\u5b58\u5728\u91cd\u590d\u6570\u5b57\uff0c\u8fd4\u56deFalse<\/code>\uff1b\u5426\u5219\uff0c\u5c06\u6570\u5b57\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\uff0c\u5e76\u7ee7\u7eed\u68c0\u67e5\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 all \u51fd\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684all<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u662f\u5426\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u3002\u901a\u8fc7\u4f7f\u7528all<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    return all(numbers.count(number) == 1 for number in numbers)<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528all<\/code>\u51fd\u6570\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u662f\u5426\u53ea\u51fa\u73b0\u4e00\u6b21\u3002\u5982\u679c\u6240\u6709\u5143\u7d20\u90fd\u53ea\u51fa\u73b0\u4e00\u6b21\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 zip \u51fd\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684zip<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u5c06\u591a\u4e2a\u5217\u8868\u538b\u7f29\u6210\u4e00\u4e2a\u5217\u8868\uff0c\u901a\u8fc7\u4f7f\u7528zip<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    return all(a != b for a, b in zip(numbers, numbers[1:]))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528zip<\/code>\u51fd\u6570\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u914d\u5bf9\uff0c\u5e76\u5224\u65ad\u6bcf\u5bf9\u5143\u7d20\u662f\u5426\u76f8\u7b49\u3002\u5982\u679c\u6240\u6709\u914d\u5bf9\u5143\u7d20\u90fd\u4e0d\u76f8\u7b49\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 map \u51fd\u6570\u5224\u65ad\u4e0d\u91cd\u590d<\/h3>\n<\/p>\n
Python\u7684map<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u5bf9\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6620\u5c04\u64cd\u4f5c\uff0c\u901a\u8fc7\u4f7f\u7528map<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u5217\u8868\u4e2d\u7684\u6570\u5b57\u662f\u5426\u552f\u4e00\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
def are_numbers_unique(numbers):<\/p>\n
    return all(map(lambda x: numbers.count(x) == 1, numbers))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: True<\/p>\n
numbers = [1, 2, 3, 4, 4]<\/p>\n
print(are_numbers_unique(numbers))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528map<\/code>\u51fd\u6570\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u6620\u5c04\u4e3a\u5e03\u5c14\u503c\uff0c\u5e76\u5224\u65ad\u6240\u6709\u5e03\u5c14\u503c\u662f\u5426\u90fd\u4e3aTrue<\/code>\u3002\u5982\u679c\u6240\u6709\u5143\u7d20\u90fd\u53ea\u51fa\u73b0\u4e00\u6b21\uff0c\u5219\u8bf4\u660e\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u5426\u5219\u5b58\u5728\u91cd\u590d\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u68c0\u67e5\u4e00\u7ec4\u6570\u5b57\u662f\u5426\u4e0d\u91cd\u590d\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\uff08set\uff09\u6765\u68c0\u67e5\u4e00\u7ec4\u6570\u5b57\u662f\u5426\u4e0d\u91cd\u590d\u3002\u96c6\u5408\u7684\u7279\u6027\u662f\u4e0d\u80fd\u5305\u542b\u91cd\u590d\u5143\u7d20\uff0c\u56e0\u6b64\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\u540e\uff0c\u82e5\u96c6\u5408\u7684\u957f\u5ea6\u4e0e\u5217\u8868\u7684\u957f\u5ea6\u76f8\u540c\uff0c\u5219\u53ef\u4ee5\u786e\u8ba4\u6570\u5b57\u4e0d\u91cd\u590d\u3002\u4f8b\u5982\uff1a<\/p>\n
numbers = [1, 2, 3, 4]\nis_unique = len(numbers) == len(set(numbers))\nprint(is_unique)  # \u8f93\u51fa True\uff0c\u8868\u793a\u6570\u5b57\u4e0d\u91cd\u590d\n<\/code><\/pre>\n
\u4f7f\u7528\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u5feb\u901f\u627e\u51fa\u91cd\u590d\u7684\u6570\u5b57\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528Python\u7684Counter\u7c7b\u6765\u5feb\u901f\u627e\u51fa\u91cd\u590d\u7684\u6570\u5b57\u3002Counter\u7c7b\u4f1a\u8ba1\u7b97\u6bcf\u4e2a\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5b57\u5178\u5f62\u5f0f\u7684\u7ed3\u679c\u3002\u8fd9\u6837\u53ef\u4ee5\u5f88\u5bb9\u6613\u8bc6\u522b\u54ea\u4e9b\u6570\u5b57\u662f\u91cd\u590d\u7684\u3002\u4f8b\u5982\uff1a<\/p>\n
from collections import Counter\n\nnumbers = [1, 2, 3, 2, 4]\ncount = Counter(numbers)\nduplicates = [num for num, freq in count.items() if freq > 1]\nprint(duplicates)  # \u8f93\u51fa [2]\uff0c\u8868\u793a2\u662f\u91cd\u590d\u7684\u6570\u5b57\n<\/code><\/pre>\n
\u5728Python\u4e2d\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u53ea\u5305\u542b\u4e0d\u91cd\u590d\u6570\u5b57\u7684\u5217\u8868\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u6765\u521b\u5efa\u53ea\u5305\u542b\u4e0d\u91cd\u590d\u6570\u5b57\u7684\u5217\u8868\u3002\u901a\u8fc7\u5c06\u539f\u59cb\u5217\u8868\u8f6c\u6362\u4e3a\u96c6\u5408\u540e\uff0c\u518d\u8f6c\u6362\u56de\u5217\u8868\u5373\u53ef\u5f97\u5230\u4e0d\u91cd\u590d\u7684\u7ed3\u679c\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
numbers = [1, 2, 2, 3, 4, 4, 5]\nunique_numbers = list(set(numbers))\nprint(unique_numbers)  # \u8f93\u51fa\u53ef\u80fd\u662f [1, 2, 3, 4, 5]\uff0c\u987a\u5e8f\u53ef\u80fd\u4f1a\u6539\u53d8\n<\/code><\/pre>\n
\u8fd9\u6837\uff0c\u4f60\u5c31\u53ef\u4ee5\u8f7b\u677e\u5224\u65ad\u548c\u5904\u7406\u4e0d\u91cd\u590d\u6570\u5b57\u7684\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u5224\u65ad\u51e0\u4e2a\u6570\u662f\u5426\u4e0d\u91cd\u590d\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u3001\u5b57\u5178\u3001\u6392\u5e8f\u7b49\u65b9\u6cd5\u3002\u5176\u4e2d\uff0c\u4f7f\u7528\u96c6\u5408\u662f\u6700\u7b80\u5355\u548c\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u96c6\u5408 […]","protected":false},"author":3,"featured_media":1052459,"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\/1052450"}],"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=1052450"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1052450\/revisions"}],"predecessor-version":[{"id":1052460,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1052450\/revisions\/1052460"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1052459"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1052450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1052450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1052450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}