>>> help(max)
Help on built-in function max in module __builtin__:
max(...)
max(iterable[, key=func]) -> value
max(a, b, c, ...[, key=func]) -> value
With a single iterable argument, return its largest item.
With two or more arguments, return the largest argument.
>>>
#输入help(查看内容)就好
help(function_name)
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