Security Question: HTML encoding of information

Input encoding example:
· The information entered by the user may be characters in other languages, and malicious users may use some dangerous characters to applyProgramConduct malicious attacks;

String Susername = Server. htmlencode (username. Text. Trim ());

StringSpassword=Server. htmlencode (password. Text. Trim ())

Example of output encoding:
· Sometimes you need to output some special characters, the following two linesCodeWhat are the differences between the output results?

Response. Write ( " <H1> dazzling ice and blue " );

Response. Write (server. htmlencode ("<H1> dazzling ice and blue "));

Summary:
· Application: Application Security;
· Knowledge: Use of the htmlencode method of server objects;
· Syntax: Server. htmlencode (sting );
· Parameter: String indicates the string to be encoded.