{"id":937852,"date":"2024-12-26T19:59:57","date_gmt":"2024-12-26T11:59:57","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/937852.html"},"modified":"2024-12-26T19:59:59","modified_gmt":"2024-12-26T11:59:59","slug":"split%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/937852.html","title":{"rendered":"split\u5982\u4f55\u4f7f\u7528python"},"content":{"rendered":"

\"split\u5982\u4f55\u4f7f\u7528python\"<\/p>\n

\u5728Python\u4e2d\uff0csplit<\/code> \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u62c6\u5206\u4e3a\u5b50\u5b57\u7b26\u4e32\u5217\u8868\u3002split<\/code> \u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u4e3a\u591a\u4e2a\u90e8\u5206\u3001\u4f7f\u7528\u6307\u5b9a\u7684\u5206\u9694\u7b26\u3001\u8fd4\u56de\u4e00\u4e2a\u5217\u8868\u3002<\/strong> \u5176\u4e2d\u4e00\u4e2a\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u5c31\u662f\u5904\u7406CSV\u6587\u4ef6\u3001\u5206\u79bb\u65e5\u5fd7\u4fe1\u606f\u6216\u5904\u7406\u7528\u6237\u8f93\u5165\u7b49\u3002<\/p>\n<\/p>\n

\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/strong><\/p>\n<\/p>\n

split<\/code> \u65b9\u6cd5\u9ed8\u8ba4\u4f7f\u7528\u7a7a\u683c\u4f5c\u4e3a\u5206\u9694\u7b26\uff0c\u4f46\u53ef\u4ee5\u6307\u5b9a\u5176\u4ed6\u7684\u5206\u9694\u7b26\u3002\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u4f20\u9012\u4e00\u4e2a\u53c2\u6570\u4f5c\u4e3a\u5206\u9694\u7b26\uff0c\u8be5\u65b9\u6cd5\u4f1a\u5728\u6bcf\u4e2a\u5206\u9694\u7b26\u51fa\u73b0\u7684\u5730\u65b9\u5c06\u5b57\u7b26\u4e32\u62c6\u5206\u3002\u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u5206\u9694\u7b26\uff0csplit<\/code> \u4f1a\u81ea\u52a8\u5c06\u8fde\u7eed\u7684\u7a7a\u767d\u5b57\u7b26\uff08\u7a7a\u683c\u3001\u6362\u884c\u7b26\u3001\u5236\u8868\u7b26\u7b49\uff09\u5f53\u4f5c\u5206\u9694\u7b26\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5355\u8bcd\u7684\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u60f3\u8981\u5c06\u8fd9\u4e9b\u5355\u8bcd\u5206\u9694\u5f00\u5e76\u653e\u5165\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 split<\/code> \u65b9\u6cd5\u3002<\/p>\n<\/p>\n

text = "Python is a powerful programming language"<\/p>\n
words = text.split()  # \u9ed8\u8ba4\u5206\u9694\u7b26\u4e3a\u7a7a\u683c<\/p>\n
print(words)  # \u8f93\u51fa: ['Python', 'is', 'a', 'powerful', 'programming', 'language']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u6307\u5b9a\u5206\u9694\u7b26\u7684\u60c5\u51b5\u4e0b\uff0c\u4f8b\u5982\u9017\u53f7\u6216\u5176\u4ed6\u7b26\u53f7\uff0csplit<\/code> \u65b9\u6cd5\u7684\u4f7f\u7528\u53ef\u4ee5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
csv_line = "apple,banana,cherry,dates"<\/p>\n
fruits = csv_line.split(',')  # \u6307\u5b9a\u9017\u53f7\u4e3a\u5206\u9694\u7b26<\/p>\n
print(fruits)  # \u8f93\u51fa: ['apple', 'banana', 'cherry', 'dates']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8 split<\/code> \u65b9\u6cd5\u7684\u66f4\u591a\u7528\u6cd5\u548c\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u57fa\u672c\u7528\u6cd5<\/h3>\n<\/p>\n
\u5728\u57fa\u672c\u7528\u6cd5\u4e2d\uff0csplit<\/code> \u51fd\u6570\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u6309\u7a7a\u683c\u5206\u5272\u6210\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5217\u8868\u3002\u8fd9\u79cd\u7528\u6cd5\u5728\u5904\u7406\u7b80\u5355\u7684\u6587\u672c\u5206\u5272\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
\u7a7a\u683c\u5206\u5272<\/h4>\n<\/p>\n
\u5f53\u4e0d\u6307\u5b9a\u4efb\u4f55\u53c2\u6570\u65f6\uff0csplit<\/code> \u5c06\u9ed8\u8ba4\u4f7f\u7528\u7a7a\u683c\u4f5c\u4e3a\u5206\u9694\u7b26\uff0c\u5e76\u4e14\u4f1a\u5ffd\u7565\u8fde\u7eed\u7684\u7a7a\u683c\u3002<\/p>\n<\/p>\n
sentence = "Python  is   easy to learn"<\/p>\n
words = sentence.split()<\/p>\n
print(words)  # \u8f93\u51fa: ['Python', 'is', 'easy', 'to', 'learn']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6307\u5b9a\u5206\u9694\u7b26<\/h4>\n<\/p>\n
\u9664\u4e86\u4f7f\u7528\u9ed8\u8ba4\u7684\u7a7a\u683c\u5206\u9694\u7b26\u4e4b\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u6307\u5b9a\u81ea\u5b9a\u4e49\u7684\u5206\u9694\u7b26\uff0c\u4f8b\u5982\u9017\u53f7\u3001\u5206\u53f7\u6216\u5176\u4ed6\u7b26\u53f7\u3002<\/p>\n<\/p>\n
data = "one,two,three,four"<\/p>\n
items = data.split(',')<\/p>\n
print(items)  # \u8f93\u51fa: ['one', 'two', 'three', 'four']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u5206\u5272\u9650\u5236<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u53ea\u60f3\u5206\u5272\u5b57\u7b26\u4e32\u7684\u524d\u51e0\u4e2a\u90e8\u5206\uff0c\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528 split<\/code> \u65b9\u6cd5\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570 maxsplit<\/code>\u3002maxsplit<\/code> \u53c2\u6570\u7528\u4e8e\u9650\u5236\u5206\u5272\u6b21\u6570\u3002<\/p>\n<\/p>\n
text = "apple,banana,cherry,dates"<\/p>\n
\u4ec5\u5206\u5272\u4e00\u6b21<\/strong><\/h2>\n
fruits = text.split(',', 1)<\/p>\n
print(fruits)  # \u8f93\u51fa: ['apple', 'banana,cherry,dates']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u884c\u5206\u5272<\/h3>\n<\/p>\n
\u5728\u5904\u7406\u591a\u884c\u5b57\u7b26\u4e32\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 split<\/code> \u65b9\u6cd5\u7ed3\u5408\u6362\u884c\u7b26 \\n<\/code> \u6765\u5206\u5272\u884c\u3002<\/p>\n<\/p>\n
multiline_text = """Line1<\/p>\n
Line2<\/p>\n
Line3"""<\/p>\n
lines = multiline_text.split('\\n')<\/p>\n
print(lines)  # \u8f93\u51fa: ['Line1', 'Line2', 'Line3']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u4e0e\u5176\u4ed6\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528<\/h3>\n<\/p>\n
split<\/code> \u65b9\u6cd5\u5e38\u5e38\u4e0e\u5176\u4ed6\u5b57\u7b26\u4e32\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u5904\u7406\u4efb\u52a1\u3002<\/p>\n<\/p>\n
split<\/code> \u4e0e strip<\/code><\/h4>\n<\/p>\n
strip<\/code> \u65b9\u6cd5\u7528\u4e8e\u53bb\u9664\u5b57\u7b26\u4e32\u9996\u5c3e\u7684\u7a7a\u767d\u5b57\u7b26\uff0c\u7ed3\u5408 split<\/code> \u53ef\u4ee5\u786e\u4fdd\u5206\u5272\u540e\u7684\u5b57\u7b26\u4e32\u6ca1\u6709\u591a\u4f59\u7684\u7a7a\u767d\u3002<\/p>\n<\/p>\n
text = "  apple, banana , cherry "<\/p>\n
cleaned_items = [item.strip() for item in text.split(',')]<\/p>\n
print(cleaned_items)  # \u8f93\u51fa: ['apple', 'banana', 'cherry']<\/p>\n
<\/code><\/pre>\n<\/p>\n
split<\/code> \u4e0e join<\/code><\/h4>\n<\/p>\n
join<\/code> \u65b9\u6cd5\u7528\u4e8e\u5c06\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0csplit<\/code> \u548c join<\/code> \u53ef\u4ee5\u7ec4\u5408\u7528\u4e8e\u5b57\u7b26\u4e32\u7684\u62c6\u5206\u4e0e\u91cd\u7ec4\u3002<\/p>\n<\/p>\n
words = "apple banana cherry"<\/p>\n
\u5148\u5206\u5272\u540e\u91cd\u7ec4<\/strong><\/h2>\n
reversed_text = ' '.join(words.split()[::-1])<\/p>\n
print(reversed_text)  # \u8f93\u51fa: 'cherry banana apple'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u5904\u7406\u7279\u6b8a\u5b57\u7b26<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5b57\u7b26\u4e32\u4e2d\u53ef\u80fd\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd split<\/code> \u7684\u6b63\u5e38\u5206\u5272\u3002\u8fd9\u65f6\u9700\u8981\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5904\u7406\u3002<\/p>\n<\/p>\n
import re<\/p>\n
text = "apple;banana|cherry:dates"<\/p>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u591a\u91cd\u5206\u9694\u7b26\u5206\u5272<\/strong><\/h2>\n
items = re.split(r'[;|:]', text)<\/p>\n
print(items)  # \u8f93\u51fa: ['apple', 'banana', 'cherry', 'dates']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516d\u3001\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
1\u3001\u6570\u636e\u89e3\u6790<\/h4>\n<\/p>\n
\u5728\u6570\u636e\u89e3\u6790\u4e2d\uff0csplit<\/code> \u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u89e3\u6790\u7ed3\u6784\u5316\u6570\u636e\uff0c\u4f8b\u5982CSV\u6587\u4ef6\u4e2d\u7684\u884c\u6570\u636e\u3002<\/p>\n<\/p>\n
csv_data = "name,age,city\\nJohn,23,New York\\nJane,30,Los Angeles"<\/p>\n
rows = csv_data.split('\\n')<\/p>\n
for row in rows:<\/p>\n
    columns = row.split(',')<\/p>\n
    print(columns)<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u65e5\u5fd7\u5904\u7406<\/h4>\n<\/p>\n
\u5728\u65e5\u5fd7\u5904\u7406\u5e94\u7528\u4e2d\uff0csplit<\/code> \u65b9\u6cd5\u53ef\u7528\u4e8e\u5206\u5272\u548c\u63d0\u53d6\u65e5\u5fd7\u6587\u4ef6\u4e2d\u7684\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<\/p>\n
log_line = "ERROR 2023-11-01 10:00:00 - An error occurred"<\/p>\n
parts = log_line.split(' - ')<\/p>\n
log_level, timestamp, message = parts[0].split()[0], ' '.join(parts[0].split()[1:]), parts[1]<\/p>\n
print(f"Level: {log_level}, Timestamp: {timestamp}, Message: {message}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u7684\u8be6\u7ec6\u8bf4\u660e\u548c\u5b9e\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0cPython\u4e2d\u7684split<\/code>\u65b9\u6cd5\u975e\u5e38\u7075\u6d3b\u4e14\u529f\u80fd\u5f3a\u5927\uff0c\u80fd\u591f\u7528\u4e8e\u591a\u79cd\u5b57\u7b26\u4e32\u5206\u5272\u4efb\u52a1\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u9ad8\u6548\u5730\u5904\u7406\u6587\u672c\u6570\u636e\u3002\u638c\u63e1split<\/code>\u65b9\u6cd5\u7684\u4f7f\u7528\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u5347\u5904\u7406\u5b57\u7b26\u4e32\u6570\u636e\u7684\u80fd\u529b\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528split\u65b9\u6cd5\u8fdb\u884c\u5b57\u7b26\u4e32\u5206\u5272\uff1f<\/strong>
\u5728Python\u4e2d\uff0csplit()\u65b9\u6cd5\u662f\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u6210\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u4f1a\u6839\u636e\u7a7a\u683c\u8fdb\u884c\u5206\u5272\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u793a\u4f8b\u6765\u4e86\u89e3\u5982\u4f55\u4f7f\u7528\u5b83\uff1a<\/p>\n
text = "Hello World"\nresult = text.split()\nprint(result)  # \u8f93\u51fa: ['Hello', 'World']\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u60f3\u8981\u6839\u636e\u7279\u5b9a\u5b57\u7b26\u8fdb\u884c\u5206\u5272\uff0c\u53ef\u4ee5\u5c06\u8be5\u5b57\u7b26\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9split()\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n
csv_data = "name,age,city"\nresult = csv_data.split(",")\nprint(result)  # \u8f93\u51fa: ['name', 'age', 'city']\n<\/code><\/pre>\n
split\u65b9\u6cd5\u7684\u53c2\u6570\u6709\u54ea\u4e9b\uff1f<\/strong>
split()\u65b9\u6cd5\u53ef\u4ee5\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff1aseparator\u548cmaxsplit\u3002separator\u662f\u60a8\u5e0c\u671b\u4f7f\u7528\u7684\u5206\u9694\u7b26\uff0cmaxsplit\u662f\u60a8\u5e0c\u671b\u5206\u5272\u7684\u6700\u5927\u6b21\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u53ea\u60f3\u5206\u5272\u4e00\u6b21\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n
text = "apple orange banana"\nresult = text.split(" ", 1)\nprint(result)  # \u8f93\u51fa: ['apple', 'orange banana']\n<\/code><\/pre>\n
\u5982\u679c\u4e0d\u6307\u5b9amaxsplit\uff0csplit()\u5c06\u4f1a\u5206\u5272\u6240\u6709\u5339\u914d\u7684\u5206\u9694\u7b26\u3002<\/p>\n
\u5728\u5904\u7406\u590d\u6742\u5b57\u7b26\u4e32\u65f6\uff0c\u4f7f\u7528split\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f<\/strong>
\u5728\u5904\u7406\u590d\u6742\u6216\u4e0d\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u65f6\uff0c\u4f7f\u7528split()\u65f6\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\u3002\u9996\u5148\uff0c\u786e\u4fdd\u60a8\u77e5\u9053\u5206\u9694\u7b26\u662f\u4ec0\u4e48\uff0c\u6709\u65f6\u5b57\u7b26\u4e32\u4e2d\u7684\u591a\u4e2a\u7a7a\u683c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u7ed3\u679c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528strip()\u65b9\u6cd5\u6765\u6e05\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7a7a\u767d\uff0c\u786e\u4fdd\u5206\u5272\u7684\u51c6\u786e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n
text = "   Hello   World   "\nresult = text.strip().split()\nprint(result)  # \u8f93\u51fa: ['Hello', 'World']\n<\/code><\/pre>\n
\u53e6\u5916\uff0c\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u5206\u5272\u9700\u6c42\uff0c\u60a8\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u7684split\u65b9\u6cd5\uff0c\u8fd9\u6837\u53ef\u4ee5\u6839\u636e\u66f4\u590d\u6742\u7684\u6a21\u5f0f\u8fdb\u884c\u5206\u5272\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0csplit \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u62c6\u5206\u4e3a\u5b50\u5b57\u7b26\u4e32\u5217\u8868\u3002split \u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e […]","protected":false},"author":3,"featured_media":937853,"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\/937852"}],"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=937852"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937852\/revisions"}],"predecessor-version":[{"id":937854,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937852\/revisions\/937854"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/937853"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=937852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=937852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=937852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}