今天爱分享给大家带来解释python中的help()和dir()函数【面试题详解】,希望能够帮助到大家。
Help()函数是一个内置函数,用于查看函数或模块用途的详细说明
>>> import copy >> help(copy.copy)
Help on function copy in module copy: copy(x) Shallow copy operation on arbitrary Python objects. See the module’s __doc__ string for more info.
Dir()函数也是内置函数,dir() 函数不带参数时,返回当前范围内的变量、方法和定义的类型列表;带参数时,返回参数的属性、方法列表。
>>> dir(copy.copy)
运行结果 [‘__annotations__’, ‘__call__’, ‘__class__’, ‘__closure__’, ‘__code__’, ‘__defaults__’, ‘__delattr__’, ‘__dict__’, ‘__dir__’, ‘__doc__’, ‘__eq__’, ‘__format__’, ‘__ge__’, ‘__get__’, ‘__getattribute__’, ‘__globals__’, ‘__gt__’, ‘__hash__’, ‘__init__’, ‘__init_subclass__’, ‘__kwdefaults__’, ‘__le__’, ‘__lt__’, ‘__module__’, ‘__name__’, ‘__ne__’, ‘__new__’, ‘__qualname__’, ‘__reduce__’, ‘__reduce_ex__’, ‘__repr__’, ‘__setattr__’, ‘__sizeof__’, ‘__str__’, ‘__subclasshook__’]
 原文链接:https://blog.itblood.com/2342.html,转载请注明出处。		    			
		            
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