def zhuangshiqi(function):
def wrapper(*args,**kwargs):
print(“=计算=”)
x=function(args,**kwargs)
return x
return wrapper
@zhuangshiqi
def jiafa(a,b):
return a+b
@zhuangshiqi
def jianfa(a,b):
return a-b
@zhuangshiqi
def chengfa(a,b):
return ab
@zhuangshiqi
def chufa(a,b):
return a/b
print(jiafa(4,5))
print(chengfa(4,5))
print(jianfa(4,5))
print(chufa(4,5))
运行：
=计算=
9
=计算=
20
=计算=
-1
=计算=
0.8
