Code to create CAPTCHA code in ASP.NET?

问题

I want to create a CAPTCHA similar to http://www.gigbooks.com/getcaptcha.php this one. But its in PHP an anyone provide me the code to create the same in ASP.NET ?

I am using ASP.NET 2.0 (C#)

Thanks,

回答1:

For a programmatic API to reCAPTCHA, start at the recapture home page.

If you just want to hide contact emails, take a look at Google's reCAPTCHA mailhide.

来源：https://stackoverflow.com/questions/430615/code-to-create-captcha-code-in-asp-net