The Use of Actionscript3.0 Realize Addition and Subtraction Verification Code
Chengcheng Li · Computer Programming Skills & Maintenance · 2012
The verification code is software system essential safety technology,which can effectively prevent malicious input.The Flash application is now widely used,in the Flash to achieve verification code is the software required.Development of Flash software in ActionScript language with rich graphics API,through the API can realize completely the software required for the verification code.