测试用例日志模块编写：

import time
#定义Loginfo类
class Loginfo(object):
    #定义打开日志功能：
    def __init__(self,path = "",mode = "w"):
        fname = path + time.strftime("%Y-%m-%d",time.gmtime())
        self.log = open(path + fname + ".txt",mode,encoding="utf-8")
    #定义写日志功能：
    def log_write(self,msg):
        self.log.write(msg)
    #定义关闭日志功能：
    def log_close(self):
        self.log.close()
if __name__ == '__main__':
    log = Loginfo()
    log.log_write("test Loginfo 测试")
    log.log_close()