from __future__ import print_function from datetime import datetime now = datetime.now() # current date and time year = now.strftime("%Y") print("year:", year) month = now.strftime("%m") print("month:", month) day = now.strftime("%d") print("day:", day) time = now.strftime...
import time import functools # 需要引入代码包 def timer(func): @functools.wraps(func) # 继承函数的__name__等属性 def wapper(): start_time = time.time() res = func() end_time = time.time() return res,( end_time - start_time ) return wapper @timer def index(): time.sleep(3)...
print(f"{self.func.__name__} executed in {end_time - start_time:.4f}s") return result @TimerDecorator def example_function(): time.sleep(1) print("Function executed") example_function() 在这个例子中,TimerDecorator类通过__call__方法实现了装饰器逻辑 ,测量并打印了被装饰函数example_function...
def hello(name, time='2020'): return ('hello %s, %s' %(name, time)) print(hello('python')) #输出 hello python, 2020 1. 2. 3. 4. 5. 默认值是在定义过程中在函数定义处计算的,比如: time = '2021' def hello(name, time=time): return ('hello %s, %s' %(name, time)) print(h...
a=np.random.rand(100000)b=np.random.rand(100000)tic=time.time()foriinrange(100000):c+=a[i]*b[i]toc=time.time()print(c)print("for loop:"+str(1000*(toc-tic))+"ms")c=0tic=time.time()c=np.dot(a,b)toc=time.time()print(c)print("Vectorized:"+str(1000*(toc-tic))+"ms")...
print(dd2) # defaultdict(<function <lambda> at 0x000001ECF0571E18>, {'优乐美': 0}) 三. time时间模块# 时间有三种: 结构化时间: gmtime() localtime() 时间戳: time.time() time.mktime() 格式化时间: time.strftime() time.strptime() 时间转化的思路: 数字- > 字符串 struct_time = time.lo...
time() func() stop = time.time() return (stop - start) return wrapper @timing_func def test_list_append(): lst = [] for i in range(0, 100000): lst.append(i) @timing_func def test_list_compre(): [i for i in range(0, 100000)] if __name__ == "__main__": a = test...
time.strftime(format[, t])实例演示:实例(Python 2.0+) #!/usr/bin/python # -*- coding: UTF-8 -*- import time # 格式化成2016-03-20 11:45:39形式 print time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()) # 格式化成Sat Mar 28 22:24:24 2016形式 print time.strftime("%a %b...
time.sleep(10)print('程序内等待10s后输出')try: a=TestFunction() a.my_test()print('类中的函数执行无异常')exceptFunctionTimedOut as e:print('类中函数执行抛出的异常信息:', e) 执行结果: 代码2如下: fromfunc_timeoutimportfunc_set_timeout, FunctionTimedOutimporttimeclassTestFunction(object):de...
3、使用python第三方 func_timeout 模块中提供的 func_set_timeout 装饰器可以非常简单的设置python程序的超时时间,超时后程序抛出 func_timeout.exceptions.FunctionTimedOut 异常。此时再用 try-except 做异常处理即可。 安装模块 pip install func_timeout ...