python ——装饰器

import time

def run_time(fun):
    def wrapper():
        start=time.time()
        fun()#函数在这里执行
        end=time.time()
        cost_time=end-start
        print("耗时",cost_time)
    return wrapper

@run_time
def fun_one():
    for i in range(0,10):
        print(i)
        time.sleep(0.5)

@run_time
def fun_two():
    for i in range(10,16):
        print(i)
        time.sleep(0.6)

fun_one()
fun_two()

import time
def fun_one():
    t0=time.time()
    for i in range(0,10):
        print(i)
    t1=time.time()
    total_time=t1-t0
    print(total_time)

def fun_two():
    t0=time.time()
    for i in range(11,32):
        print(i)
    t1=time.time()
    total_time=t1-t0
    print(total_time)

def fun_three():
    t0=time.time()
    for i in range(110,120):
        print(i)
    t1=time.time()
    total_time=t1-t0
    print(total_time)

fun_one()
fun_two()
fun_three()