Python中split()方法常见用法总结大全

str.split(sep = None, maxsplit = -1)

text = "a-b-c-d-e-f"
parts = text.split('-', 3)
print(parts)  # 输出: ['a', 'b', 'c', 'd-e-f']

text = "Hello World!   How are you?"
words = text.split()
print(words) # ['Hello', 'World!', 'How', 'are', 'you?']

text = "apple,banana,cherry,dates"
fruits = text.split(',')
print(fruits) # ['apple', 'banana', 'cherry', 'dates']

import re

text = "one--two---three----four"
parts = re.split('--+', text)
print(parts) # ['one', 'two', 'three', 'four']

text = "one two three four five"
parts = text.split(' ', 2)
print(parts) # ['one', 'two', 'three four five']

# 分割空字符串，不指定分隔符
print("".split())          # 输出: []

# 分割空字符串，指定分隔符
print("".split(','))       # 输出: ['']

# 分割只有一个字符的字符串
print("a".split(','))      # 输出: ['a']

text = "one,,two,three,,four"
parts = text.split(',')
print(parts) # ['one', '', 'two', 'three', '', 'four']

import re

text = "one,,two,three,,four"
parts = re.split(r',+', text)
print(parts) # ['one', 'two', 'three', 'four']

text = "one two three four"

# 从左侧分割
print(text.split(' ', 2))   # 输出: ['one', 'two', 'three four']

# 从右侧分割
print(text.rsplit(' ', 2))  # 输出: ['one two', 'three', 'four']

import re

text = "apple;banana, cherry|dates"
parts = re.split(r'[;,|\s]+', text)
print(parts) # ['apple', 'banana', 'cherry', 'dates']

text = "Hello\nWorld\r
Python\rAnother line"

# 使用 split('
')
print(text.split('
'))  # 输出: ['Hello', 'World\r', 'Python\rAnother line']

# 使用 splitlines()
print(text.splitlines())  # 输出: ['Hello', 'World', 'Python', 'Another line']

text = ",apple,banana,,cherry,"

parts = text.split(',')
print(parts)  # 输出: ['', 'apple', 'banana', '', 'cherry', '']

parts = text.strip(',').split(',')
print(parts)  # 输出: ['apple', 'banana', '', 'cherry']

text = "你好,世界,Python"
parts = text.split(',')
print(parts)  # 输出: ['你好', '世界', 'Python']