gatehub verification code

One: code Generation Implementation codesprotected void Page_Load (object sender, EventArgs E){String Validatecode = Createvalidatecode ();//generate Verification CodeBitmap Bitmap = new Bitmap (imgwidth, imgheight);//generate Bitmap imageDisturbbitmap (bitmap); Image backgroundDrewvalidatecode (bitmap, Validatecode);//draw captcha imageBitmap. Save (response.outputstream, imageformat.gif);//preserve image,

The graphic verification code is generated (numbers and English uppercase and lowercase) and submitted for verification. The verification code is case-sensitive. When I first came into contact, I felt very fun. Then I studied it myself and made a demo. Then I sorted it out.

Using the TP framework to write a landing interface, originally can display the verification code picture, but after the project has been transplanted, can not display the verification code picture, only display a white box, there is no verification

Generate local verification code _ Android source code and verification code _ android source codeThis is a small feature of my project. It enables the function of generating a local verification

The Authentication code is to prevent the machine from flooding to the website pollution and increase the server burden to appear. At present, large and small sites have verification code. Today, I implemented a simple authentication code class. Simply because there is no interference in the arc and so on, but the tex

Python simulated logon Verification Code (simple code) and python Verification Code If you don't talk much about it, You can directly post code to everyone. import urllibimport urllib2import cookielibdef getImg(picurl):'''request

ThinkPHP opens the verification code page to display the solution for garbled text, thinkphp verification code. ThinkPHP opens the verification code page to display the solution to garbled cod