python-记log

import traceback
import os
from datetime import datetime


def wrtLog(funName):
    def func_in(*args, **kwargs):
        try:
            return funName(*args, **kwargs)  # 返回值
        except:
            print(traceback.format_exc())
            saveLog(traceback.format_exc())
    return func_in


def saveLog(errMsg):
    try:
        if(not os.path.exists("C:\RecFile")):
            os.makedirs("C:\RecFile")
        with open("C:\RecFile\errLog.txt", 'a', encoding='utf8', errors='ignore') as fa:
            fa.write("
记录时间：%s" % datetime.now().strftime('%Y-%m-%d %H:%M:%S'))
            fa.write("
-----------------------------------------------------------------------------
")
            fa.write(errMsg)
            fa.write("
=============================================================================
")
    except:
        print(traceback.format_exc())

调用示例，

@是函数修饰符，是将下面的函数作为参数传到@后面的函数。

from writeLog import wrtLog

        
@wrtLog
def  div(a,b):
    c=a/b
    return c


c=div(7,0)