【python @ 小甲鱼网课】 P8字符串（4）截取、拆分字符串

• 截取
• • 去除空白
  • 去除字符串中的指定字符
  • 去除字符串中的指定字符串
• 拆分

x = "    hello world  "   
print(x.lstrip())    # 去除左侧留白
x = "  hello world     "
print(x.rstrip())    # 去除右侧留白
x = "    hello world    "
print(x.strip())    # 去除留白

x = "www.baidu.com"
print(x.lstrip("bwcom."))
x = "www.baidu.com"
print(x.rstrip(".dcom"))
x = "www.baidu.com"
print(x.strip("wcom."))

python3.9后才有的功能

x = "www.baidu.com"
print(x.removeprefix("www."))
x = "www.baidu.com"
print(x.removesuffix(".com"))

partition()

x = "www.baidu.com"
print(x.partition("."))
print(x.rpartition("."))

split()

x = "www.baidu.com"
print(x.split("."))

splitlines()

x = "wwwn.baidun.com"
print(x.splitlines())