int()是Python的一个内部函数 Python系统帮助里面是这么说的 >>> help(int) Help on class int in module __builtin__: class int(object) | int(x[, base]) -> integer | | Convert a string or number to an integer, if possible. A floating point | argument will
通过help(sorted)查看sorted的帮助文档,显示如下: Help on built-in function sorted in module builtins: sorted(iterable, /, *, key=None, reverse=False) Return a new list containing all items from the iterable in ascending order. A custom key function can be supplied