报错:TypeError: ‘NoneType’ object is not callable问题解决方法
def dec(function):
print("start...")
function()
print("end...")
#修饰器
@dec
def say():
print("say...")
#执行报错:TypeError: 'NoneType' object is not callable
say()
# 解决方法:调用函数时去掉括号
say