python函数装饰器

def myf(myfu):
    def infun(*args,**kwargs):
        print("begin")
        myfu(*args,**kwargs)
        print("end")
    return infun

@myf
def ph(x,y,z):
    print("hello ",x,y,z)

ph(1,2,3)

begin
hello  1 2 3
end
[Finished in 1.6s]