2014年1月4日
asp.net 验证码
摘要： Before proceeding with the topic first we mustunderstand "What isa Captcha code?" and "Why do we use them?". Most web sites havea Captcha validation in their sites.What is the Captcha code?A Captcha code is simply a combination of some characters and numbers like "Alk13" 阅读全文
posted @ 2014-01-04 10:53 shuaixf 阅读(275) 评论(0) 推荐(0)