装饰器
def count_time(func):
def wrapper(*args, **kwargs):
start_time = time.time()
res = func(*args, **kwargs)
end_time = time.time()
print(end_time - start_time)
return res
return wrapper
"""
只要运行语法糖这行代码(@count_time)，就会立刻调用这个装饰器功能，然后把要装饰的函数地址传进去即：count_time(home) 最后把得到的结果赋值给原函数名，home = count_time(home)
"""
@count_time
def home():
print("dhdh")
time.sleep(2)
print("haha")
return "home函数的返回值"
print(home())