文件下载乱码

http://blogs.msdn.com/b/asiatech_zh-cn/archive/2011/10/12/ie.aspx

 

http://www.cnblogs.com/clare-zhang/archive/2011/08/25/2153291.html

 

http://user.qzone.qq.com/732952656/blog/1372059599#!app=2&via=QZ.HashRefresh&pos=1372059599