python3.4写中文字符到csv出现乱码的问题

1、出现乱码的源码如下：#usr/bin/python3.4# -*- coding: utf-8 -*-import timeimport csvr_fo=open(r'E:/test.csv',mode='a',encoding='utf8')string_temp="你,好,啊,！\n"r_fo.write(string_temp) r_fo.close()print("job done!")