>>> class Demo: #定义一个类 def __init__(self):pass def methodA(self):pass def methodB(self):pass >>> dir(Demo) #查看类的成员 ['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__...
The dir() method takes in a single parameter: object - can be an empty/filled tuple, list, set, dictionary etc or any user-defined object dir() Return Value The dir() method returns: . the list of attributes of the object passed to the method Example 1: Python dir() with a List...
class Example: def __init__(self): self.public = 1 self._protected = 2 self.__private = 3 def method(self): pass @property def prop(self): return self.public e = Example() # Get all attributes attrs = dir(e) # Filter by type methods = [a for a in attrs if callable(...
If no parameters are passed it returns a list of names in the current local scope. 代码1:有和没有导入外部库。 # Python3 code to demonstratedir()# when no parameters are passed# Note that we have not imported any modulesprint(dir())# Now let's import two modulesimportrandomimportmath# ...
Without arguments, return the list of names in the current local scope. With an argument, attempt to return a list of valid attributes for that object. If the object has a method named__dir__(), this method will be called and must return the list of attributes. This allows objects that...
Without arguments, return the list of names in the current local scope. With an argument, attempt to return a list of valid attributes for that object. If the object has a method named __dir__(), this method will be called and must return the list of attributes. This allows objects th...
bound method Comment.info of <__main__.Comment object at 0x000001F5932BF9B0>>39java 同样很强大402048 从输出可知 hasattr() 函数可以判断属性,也可判断方法,getattr() 获取的是属性的值,当对获取方法的属性值时返回的是方法的内存对象。setattr() 可以改变对象的属性值,如果对象的属性不存在时,就会为该...
help(list.pop) 输出: Help on method_descriptor: pop(...) L.pop([index]) -> item -- remove and return item at index (default last). Raises IndexError if list is empty or index is out of range. (END)
def methodA(self):pass def methodB(self):pass >>> dir(Demo) #查看类的成员 ['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass_...
Python1dir([object]) 应用示例: class MyClass: def __init__(self): self.a = 5 self.b = 10 def method(self): pass # 创建一个实例 obj = MyClass() # 获取对象的属性和方法列表 attributes = dir(obj) print(attributes) # 输出类似 ['__class__', '__delattr__', '__dict__', '...