python3以特定字符集读写文件的小例子

>>> import codecs;
>>> out.close();
>>> out=codecs.open('test2.txt','w','utf-8');
>>> out.write("This is 测试写入中文，使用UTF-8字符集.");
>>> out.close();

>>> import codecs;
>>> out=codecs.open('test2.txt','r','utf-8');
>>> for line in out:
    print(line);
   
This is 测试写入中文，使用UTF-8字符集.
>>> out.close();