hasattr/getattr/setattr/delattr
#通过字符串判断/获取/新增/删除对象属性或方法
class att(object):
def __init__(self,var):
self.var=var
def func(self):
print('%s is funcing'%self.var)
<1>hasattr:
hasattr(att,'func') #True
hasattr(att,'func1') #False
<2>getattr:
att1=att('a')
getattr(att1,'func')()#执行func函数
getattr(att1,'var')#输出var属性
<3>setattr:
att1=att('a')
def func2(self):
print('%s is func2'%self.name)
setattr(att1,'fun2',func2)
att1.fun2(att1)
<4>delattr:
delattr(att1,'fun2')