关于用户注册/登录网站的时候 “拖动滑块验证” 的，问题，实现，解决方案！

“拖动滑块验证”是怎么实现的？

参考link:

极验滑动验证码识别源码分享20150409

http://bbs.125.la/thread-13787327-1-1.html

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