目瞪狗呆啊，装饰器是不是外星产物啊，根本不懂啊！！
def new_fn(f):
def fn(x):
print ('call' , f.__name__ + '()')
return f(x)
return fn
@new_fn
def f1(x):
return x*2
f1=new_fn(f1)
print (f1(5))为什么这里打印的是
call fn() call f1() 10
接着来加两行：
def new_fn(f):
def fn(x):
print ('call' , f.__name__ + '()')
return f(x)
return fn
@new_fn
def f1(x):
return x*2
f1=new_fn(f1)
print (f1(5))
g1=new_fn(f1)
print (g1(5))天啦噜它打印的是这样的
call fn() call f1() 10 call fn() call fn() call f1() 10
求外星大牛解释一下
