Python Basic -rsplit( )、split( )、splitlines()

先定义几个字符串变量

string1 = "Hello,World."
string2 = "Python is the best computer language"
string3 = "Python is the language that the most easy of the\tworld."
string4 = "3 is bigger than 1"
string5 = "Python is the {what} that the most {how} of the world."

rsplit( )–以指定字符将字符串分割成多段，默认情况下，只要是匹配到的字符就分，从右往左找，分割符被逗号取代，返回值为列表

print(string3.rsplit("the"))            # 以指定字符将字符串分割成多段，默认情况下，只要是匹配到的字符就分，从右往左找，分割符被逗号取代，返回值为列表
print(string3.rsplit("the",2))            # 以指定字符将字符串分割成多段，默认情况下，只要是匹配到的字符就分，分割符被逗号取代，返回值为列表，默认值为-1，表示不限制，2表示找两个分割符
print(string3.rsplit("the",1))            #

"""
['Python is ', ' language that ', ' most easy of ', '\tworld.']
['Python is the language that ', ' most easy of ', '\tworld.']
['Python is the language that the most easy of ', '\tworld.']
"""

split( )–比较上一个就是从左开始查找关键字，并以关键字进行拆分，从左往右查找

print("*".center(100,"*"))
print(string3.split("the"))             # 比较上一个就是从左开始查找关键字，并以关键字进行拆分，从左往右查找
print(string3.split("the",2))           # 2为maxsplit,最多找2个分割符，从左往右查找
print(string3.split("the",-1))          # -1 为默认值，不高上限
print(string3.split("the",1))           # 最多查找1个关键字
"""
['Python is ', ' language that ', ' most easy of ', '\tworld.']
['Python is ', ' language that ', ' most easy of the\tworld.']
['Python is ', ' language that ', ' most easy of ', '\tworld.']
['Python is ', ' language that the most easy of the\tworld.']

"""

splitlines()-将一行字符串分割成多行，并且返回到一个列表中，分割符为\r,\n 可以选择是否保留分割符

# 将一行字符串分割成多行，并且返回到一个列表中，分割符为\r,\n 可以选择是否保留分割符
string30 = "Python is the\n language\r.that the\r most easy\n of the world."
print("*".center(100,"*"))
print(string30.splitlines())
print(string30.splitlines(keepends=True))
"""
****************************************************************************************************
['Python is the', ' language', '.that the', ' most easy', ' of the world.']
['Python is the\n', ' language\r', '.that the\r', ' most easy\n', ' of the world.']

"""

查看全部内置字符串处理方法，请点击