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split()中如果没有参数,函数默认以空格,tab空格符,换行符等作为分割条件 String_0 = "www.com aaa bbb QJ6252630247.jpg" String_1 = "www.com\taaa\tbbb\tQJ6252630247.jpg" String_2 = "www.com\naaa\nbbb\nQJ6252630247.jpg" a = String_0.split() b = String_1.split() c = String_2.split() print(a) print(b) print(c) 结果: ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg'] ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg'] ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg']
split("/")中有参数时,会以参数作为分割条件,把字符串进行分割,得到的每个分割段作为列表的元素返回 String_0 = "www.com/aaa/bbb/QJ6252630247.jpg" String_1 = "www.com-aaa-bbb-QJ6252630247.jpg" String_2 = "www.com:aaa:bbb:QJ6252630247.jpg" a = String_0.split("/") b = String_1.split("-") c = String_2.split(":") print(a) print(b) print(c) 结果: ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg'] ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg'] ['www.com', 'aaa', 'bbb', 'QJ6252630247.jpg']
第二个参数表示分割几次 String_0 = "www:com:aaa:bbb:QJ6252630247.jpg" a = String_0.split(":", 1) b = String_0.split(":", 2) c = String_0.split(":", 3) d = String_0.split(":", 4) print(a) print(b) print(c) print(d) 结果: ['www', 'com:aaa:bbb:QJ6252630247.jpg'] ['www', 'com', 'aaa:bbb:QJ6252630247.jpg'] ['www', 'com', 'aaa', 'bbb:QJ6252630247.jpg'] ['www', 'com', 'aaa', 'bbb', 'QJ6252630247.jpg']
String_0 = "www.com/aaa/bbb/QJ6252630247.jpg"
a = String_0.split("/")[-1]
print(a)
结果:
QJ6252630247.jpg
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