Python hasattr方法用法及代码示例

例子

检查对象 my_cat 是否具有属性 age ：

class Cat():
 # This is constructor for python
 def __init__(self, name, age):
        self.name = name
        self.age = age
 # Teaching each cat how to meow
 def meow(self):
 print("I am a " + str(self.age) + " year old " + self.name)
# Creating an instance my_cat representing my cat Roxas
my_cat = Cat("Roxas", 26)
hasattr(my_cat, "age")



True

检查对象 my_cat 是否具有属性 height ：

hasattr(my_cat, "height")



False