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join() is a string method and while using it the separator string iterates over an arbitrary sequence, forming string representations of each of the elements, inserting itself between the elements.
join()是一个字符串方法,使用它时,分隔符字符串会在任意序列上迭代,从而形成每个元素的字符串表示形式,并在元素之间插入自己。
Concisely, it's because join and string.join() are both generic operations that work on any iterable and is a string method.
简而言之,这是因为join和string.join()都是可在任何可迭代对象上使用的通用操作,并且是字符串方法。
Because it is a string method, the join() can work for the Unicode string as well as plain ASCII strings.
因为它是一个字符串方法,所以join()可以用于Unicode字符串以及普通ASCII字符串。
Example Usage of string.join(list)
示例string.join(list)的用法
-bash-4.2$ python3Python 3.6.8 (default, Apr 25 2019, 21:02:35)[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linuxType "help", "copyright", "credits" or "license" for more information.>>> test_string = "test">>> test_string.join("1234")'1test2test3test4'>>>
In the above example, the string "test" is joined with every character provided as a join argument.
在上面的示例中,字符串“ test”与作为连接参数提供的每个字符连接在一起。
-bash-4.2$ python3Python 3.6.8 (default, Apr 25 2019, 21:02:35)[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linuxType "help", "copyright", "credits" or "license" for more information.>>> test_string = "test">>> test_string.join("---")'-test-test-'>>>
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