Loss of cookies in asp.net and garbled Chinese Characters

When I was doing a photo album last night, I suddenly found that the Chinese characters in the cookies in iis had a problem again, and garbled characters were displayed.
It took a while to solve the problem:
// When cookies are written
String t = HttpUtility. UrlEncode (Chinese value to be written to cookies );
HttpCookie c = new HttpCookie ("user_realname", t );
Response. Cookies. Add (c );
// When reading cookies
T = Chinese cookie value obtained;
T = HttpUtility. UrlDecode (teacher_name );
This will solve the problem.

Remind anyone who is using the vs system development project to pay attention.

The reason for the differences between the file system and iis should be related to their operating mechanism. I hope to find some information about their operating mechanism!