How to read the verification code and display it in the picture box in Yi language?

Picture box 1. Image =HTTP reading file ("http://* * * * * * * * * * * * *)

Execute once and modify the verification code once.

But it can't recognize the content, so it can still be used to post it. The server gets the verification code of the last visit to this page.

Why can't I get the text content of the verification code?

Server verification verification code:

When accessing this connection, the server will generate a random four-letter (number) and convert it into a picture, then write down your IP (one for each computer) and send the picture (that is, the verification code picture) to you.

Fill in this number when you register, and then send it to the server. The server will compare and agree.

In other words, the whole verification code doesn't exist in your computer in the form of text at all, so don't try to view it locally.

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Let's do a little experiment:

First open the easy language registration page, fill in the registration information and then fill in the verification code. After filling in, visit your verification code link. Then, the verification code on the original page has not changed. If you click register, he will prompt that the registration failed and the verification code is wrong.

First open the easy language registration page, fill in the registration information, then fill in the verification code, and then visit your verification code link. Then, the verification code of the original page has not changed, and it seems that you filled in the verification code from the access link. If you click register, he will prompt that the registration is successful (provided that you don't fill in other information).

Experimental summary: It just proves the above conclusion.