反射之attr方法

class Foo:
    def __init__(self,name,age):
        self.name = name
        self.age = age

    def show(self):
        return "%s%s"%(self.name,self.age)

obj = Foo("alex",22)
# print(obj.name)     #获取到name值
# print(obj.__dict__["name"])   #获取到name值


r = getattr(obj,"name")  #反射方法获取name值
print(r)

g = getattr(obj,"show")  #在对象中通过反射方式getattr凡是找到show方法
print(g())  #执行show方法

h = hasattr(obj,"name")   #反射之hasattr用来判断是否有这个参数
print(h)

s = setattr(obj,"cctv","bbcs")  #反射之setattr用来添加字段
print(getattr(obj,"cctv"))
print(obj.cctv,"ggggggggg")

print(obj.__dict__)

#delattr(obj,"name")   #反射之delattr用来删除字段
# print(obj.name)