{"id":1105884,"date":"2025-01-08T16:35:05","date_gmt":"2025-01-08T08:35:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1105884.html"},"modified":"2025-01-08T16:35:08","modified_gmt":"2025-01-08T08:35:08","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%b0%86%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%88%86%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1105884.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u5c06\u5b57\u7b26\u4e32\u5206\u7c7b"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u5c06\u5b57\u7b26\u4e32\u5206\u7c7b\"<\/p>\n

\u4e00\u3001Python \u4e2d\u5c06\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u4f7f\u7528\u5b57\u5178\u6216\u96c6\u5408\u8fdb\u884c\u5206\u7c7b<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u975e\u5e38\u5f3a\u5927\u4e14\u7075\u6d3b\u7684\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u60a8\u6839\u636e\u590d\u6742\u7684\u6a21\u5f0f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e9b\u6280\u672f\u3002<\/p>\n<\/p>\n

\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5b57\u7b26\u4e32\u5206\u7c7b\u662f\u975e\u5e38\u6709\u6548\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u5141\u8bb8\u60a8\u5b9a\u4e49\u590d\u6742\u7684\u6a21\u5f0f\uff0c\u5e76\u4e14\u53ef\u4ee5\u5339\u914d\u3001\u67e5\u627e\u548c\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u5b50\u5b57\u7b26\u4e32\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5904\u7406\u548c\u5206\u7c7b\u590d\u6742\u7684\u5b57\u7b26\u4e32\u6570\u636e\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n<\/p>\n

\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u5339\u914d\u548c\u5904\u7406\u5b57\u7b26\u4e32\u3002Python \u4e2d\u7684 re<\/code> \u6a21\u5757\u63d0\u4f9b\u4e86\u5bf9\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u652f\u6301\u3002\u901a\u8fc7\u5b9a\u4e49\u4e0d\u540c\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n<\/p>\n

1.1 \u5b89\u88c5\u548c\u5bfc\u5165 re<\/code> \u6a21\u5757<\/h3>\n<\/p>\n

import re<\/p>\n
<\/code><\/pre>\n<\/p>\n
1.2 \u5b9a\u4e49\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f<\/h3>\n<\/p>\n
\u60a8\u53ef\u4ee5\u5b9a\u4e49\u4e0d\u540c\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u6765\u5339\u914d\u548c\u5206\u7c7b\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u6a21\u5f0f\u6765\u5339\u914d\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff0c\u4e00\u4e2a\u6a21\u5f0f\u6765\u5339\u914d\u7535\u8bdd\u53f7\u7801\uff0c\u53e6\u4e00\u4e2a\u6a21\u5f0f\u6765\u5339\u914d\u65e5\u671f\u7b49\u3002<\/p>\n<\/p>\n
emAI<\/a>l_pattern = r'\\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Z|a-z]{2,}\\b'<\/p>\n
phone_pattern = r'\\b\\d{3}[-.\\s]??\\d{3}[-.\\s]??\\d{4}\\b'<\/p>\n
date_pattern = r'\\b\\d{4}[-\/]\\d{1,2}[-\/]\\d{1,2}\\b'<\/p>\n
<\/code><\/pre>\n<\/p>\n
1.3 \u5206\u7c7b\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n
\u4f7f\u7528 re.match<\/code> \u6216 re.search<\/code> \u51fd\u6570\uff0c\u53ef\u4ee5\u6839\u636e\u5b9a\u4e49\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n<\/p>\n
def classify_string(s):<\/p>\n
    if re.match(email_pattern, s):<\/p>\n
        return 'Email'<\/p>\n
    elif re.match(phone_pattern, s):<\/p>\n
        return 'Phone Number'<\/p>\n
    elif re.match(date_pattern, s):<\/p>\n
        return 'Date'<\/p>\n
    else:<\/p>\n
        return 'Unknown'<\/p>\n
strings = ['john.doe@example.com', '123-456-7890', '2023-10-15', 'Hello, World!']<\/p>\n
classified_strings = [(s, classify_string(s)) for s in strings]<\/p>\n
for s, category in classified_strings:<\/p>\n
    print(f'String: {s} | Category: {category}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5<\/h2>\n<\/p>\n
Python \u63d0\u4f9b\u4e86\u8bb8\u591a\u5185\u7f6e\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u5904\u7406\u548c\u5206\u7c7b\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 str.isdigit<\/code> \u65b9\u6cd5\u6765\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u7531\u6570\u5b57\u7ec4\u6210\uff0c\u4f7f\u7528 str.isalpha<\/code> \u65b9\u6cd5\u6765\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u7531\u5b57\u6bcd\u7ec4\u6210\u3002<\/p>\n<\/p>\n
2.1 \u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u5206\u7c7b<\/h3>\n<\/p>\n
def classify_string(s):<\/p>\n
    if s.isdigit():<\/p>\n
        return 'Numeric'<\/p>\n
    elif s.isalpha():<\/p>\n
        return 'Alphabetic'<\/p>\n
    elif s.isalnum():<\/p>\n
        return 'Alphanumeric'<\/p>\n
    else:<\/p>\n
        return 'Other'<\/p>\n
strings = ['12345', 'Hello', 'Hello123', 'Hello, World!']<\/p>\n
classified_strings = [(s, classify_string(s)) for s in strings]<\/p>\n
for s, category in classified_strings:<\/p>\n
    print(f'String: {s} | Category: {category}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
2.2 \u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u7684\u4f18\u52bf<\/h3>\n<\/p>\n
\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5\u7684\u4e00\u4e2a\u4e3b\u8981\u4f18\u52bf\u662f\u5b83\u4eec\u975e\u5e38\u7b80\u5355\u4e14\u6613\u4e8e\u4f7f\u7528\u3002\u4e0d\u9700\u8981\u7f16\u5199\u590d\u6742\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u5185\u7f6e\u65b9\u6cd5\u8fdb\u884c\u5206\u7c7b\u3002\u8fd9\u5bf9\u4e8e\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5206\u7c7b\u4efb\u52a1\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5b57\u5178\u6216\u96c6\u5408<\/h2>\n<\/p>\n
\u4f7f\u7528\u5b57\u5178\u6216\u96c6\u5408\u662f\u4e00\u79cd\u975e\u5e38\u7075\u6d3b\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u5c06\u5b57\u7b26\u4e32\u6620\u5c04\u5230\u4e0d\u540c\u7684\u7c7b\u522b\uff0c\u6216\u8005\u4f7f\u7528\u96c6\u5408\u5c06\u5b57\u7b26\u4e32\u5f52\u7c7b\u5230\u4e0d\u540c\u7684\u7ec4\u3002<\/p>\n<\/p>\n
3.1 \u4f7f\u7528\u5b57\u5178\u5206\u7c7b<\/h3>\n<\/p>\n
category_dict = {<\/p>\n
    'john.doe@example.com': 'Email',<\/p>\n
    '123-456-7890': 'Phone Number',<\/p>\n
    '2023-10-15': 'Date',<\/p>\n
}<\/p>\n
def classify_string(s):<\/p>\n
    return category_dict.get(s, 'Unknown')<\/p>\n
strings = ['john.doe@example.com', '123-456-7890', '2023-10-15', 'Hello, World!']<\/p>\n
classified_strings = [(s, classify_string(s)) for s in strings]<\/p>\n
for s, category in classified_strings:<\/p>\n
    print(f'String: {s} | Category: {category}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
3.2 \u4f7f\u7528\u96c6\u5408\u5206\u7c7b<\/h3>\n<\/p>\n
email_set = {'john.doe@example.com', 'jane.doe@example.com'}<\/p>\n
phone_set = {'123-456-7890', '987-654-3210'}<\/p>\n
date_set = {'2023-10-15', '2023-11-20'}<\/p>\n
def classify_string(s):<\/p>\n
    if s in email_set:<\/p>\n
        return 'Email'<\/p>\n
    elif s in phone_set:<\/p>\n
        return 'Phone Number'<\/p>\n
    elif s in date_set:<\/p>\n
        return 'Date'<\/p>\n
    else:<\/p>\n
        return 'Unknown'<\/p>\n
strings = ['john.doe@example.com', '123-456-7890', '2023-10-15', 'Hello, World!']<\/p>\n
classified_strings = [(s, classify_string(s)) for s in strings]<\/p>\n
for s, category in classified_strings:<\/p>\n
    print(f'String: {s} | Category: {category}')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
Python \u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\uff0c\u5305\u62ec\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5\u3001\u5b57\u5178\u6216\u96c6\u5408<\/strong>\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u4f18\u70b9\u548c\u9002\u7528\u573a\u666f\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u975e\u5e38\u9002\u5408\u5904\u7406\u590d\u6742\u7684\u5b57\u7b26\u4e32\u6a21\u5f0f\uff0c\u5b57\u7b26\u4e32\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\u548c\u6613\u7528\uff0c\u800c\u5b57\u5178\u548c\u96c6\u5408\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u6620\u5c04\u548c\u5f52\u7c7b\u529f\u80fd\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5b8c\u6210\u5b57\u7b26\u4e32\u5206\u7c7b\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5b57\u7b26\u4e32\u5206\u7c7b\u662f\u4e00\u79cd\u975e\u5e38\u5f3a\u5927\u4e14\u7075\u6d3b\u7684\u65b9\u6cd5<\/strong>\uff0c\u5b83\u5141\u8bb8\u60a8\u6839\u636e\u590d\u6742\u7684\u6a21\u5f0f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002\u901a\u8fc7\u5b9a\u4e49\u4e0d\u540c\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5bf9\u5404\u79cd\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002\u5e0c\u671b\u672c\u6587\u63d0\u4f9b\u7684\u793a\u4f8b\u548c\u89e3\u91ca\u80fd\u591f\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e9b\u6280\u672f\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u7c7b\u3002\u5e38\u89c1\u7684\u65b9\u5f0f\u5305\u62ec\u4f7f\u7528\u6761\u4ef6\u8bed\u53e5\u3001\u5b57\u5178\u6216\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u5b57\u7b26\u4e32\u7684\u7279\u5f81\uff08\u5982\u957f\u5ea6\u3001\u5185\u5bb9\u6216\u6a21\u5f0f\uff09\u6765\u5b9a\u4e49\u5206\u7c7b\u6807\u51c6\u3002\u4f8b\u5982\uff0c\u4f7f\u7528if<\/code>\u6761\u4ef6\u5224\u65ad\u6765\u533a\u5206\u6570\u5b57\u3001\u5b57\u6bcd\u6216\u7279\u6b8a\u5b57\u7b26\uff0c\u6216\u5229\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u8bc6\u522b\u7279\u5b9a\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
\u5728\u5b57\u7b26\u4e32\u5206\u7c7b\u4e2d\uff0c\u5982\u4f55\u63d0\u9ad8\u5206\u7c7b\u7684\u51c6\u786e\u6027\uff1f<\/strong>
\u63d0\u9ad8\u5206\u7c7b\u51c6\u786e\u6027\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u6570\u636e\u9884\u5904\u7406\u3001\u7279\u5f81\u63d0\u53d6\u548c\u673a\u5668\u5b66\u4e60<\/a>\u6a21\u578b\u3002\u9884\u5904\u7406\u53ef\u4ee5\u5305\u62ec\u53bb\u9664\u7a7a\u683c\u3001\u8f6c\u6362\u5927\u5c0f\u5199\u7b49\uff0c\u7279\u5f81\u63d0\u53d6\u53ef\u4ee5\u4f7f\u7528TF-IDF\u6216\u8bcd\u5d4c\u5165\u7b49\u6280\u672f\u3002\u63a5\u4e0b\u6765\uff0c\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\uff08\u5982\u51b3\u7b56\u6811\u3001SVM\u6216\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\uff09\u6765\u8bad\u7ec3\u5206\u7c7b\u5668\uff0c\u4ece\u800c\u63d0\u5347\u5206\u7c7b\u6548\u679c\u3002<\/p>\n
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