python------面向对象进阶反射详解(重点）

 1 class Dog(object):
 2     def __init__(self,name):
 3         self.name = name
 4 
 5     def eat(self):
 6         print("%s is eating ..." % self.name)
 7 
 8 def bulk(self):   #不在类里
 9     print("%s is yelling.." %self.name)
10 
11 d = Dog("zhangsan")
12 choice = input(">>:").strip()
13 
14 if hasattr(d,choice):  #判断一个对象里是否有对应的字符串的方法
15     func = getattr(d,choice)   #根据字符串去获取对象里的对应的内存的方法
16     func()
17 else:
18     # setattr(d,choice,bulk)   #is equivalent to ‘x.y = v‘  d.talk = bulk的
19     # d.talk(d)

                               #这样写就写死了，func  = getattr(d,choice)
                               #              func(d)

20 21 setattr(d,choice,22) 22 a = getattr(d,choice) 23 print(a)

>>:age
22