How to simulate a web page to send information to the server?

Sending information to the server in acquisition mode,

For example, information sent to www.192.168.1.1/index.php is followed by a question mark+.

Different languages have different ways. Can be analyzed in detail.

Agg: enter the server address+? userID = 123 & amp； Userpwd=456 is sent to the server.

The value of data userID is 123 and the value of userpwd is 456.

If no database or program is designed, some servers can bypass the login and enter directly.

For example, enter a user name at will. When entering the password, add the or keyword in the middle, so I won't explain how to do it in detail.