1.datetime中的datetime.datetime.now()生成的时间中自带有毫秒值

# coding=utf-8
import time,datetime
def  log(level,con):
    try:
        with open(‘E:/test.log‘,‘a‘) as f:
              # t = time.strftime("%Y-%M-%d  %H:%m:%S")
              now = datetime.datetime.now()
              con = str(now)  +" "+level+":"+con+"\n"
              f.write(con)
    except Exception,e:
          print e
        
    
log("INFO","start test")
2.使用logging模块自带的配置

    # coding = utf-8

    import logging 

   def f(filename):

                   logging.basicConfig(level=logging.DEBUG, format=‘%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s‘, \

                   datefmt=‘%a, %d %b %Y %H:%M:%S‘, \

                   filename=filename, \

                    filemode=‘w‘) 

                   return logging

f(filename).debug(‘debug message‘) 

f(filename).info(‘info message‘) 

f(filename).warning(‘warning message‘) 

f(filename).error(‘error message‘) 

f(filename).critical(‘critical message‘)

创建自定义带时间戳的日志信息