简单实用图形验证码原生js特效代码

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<!DOCTYPE html><html><head><meta charset="UTF-8"><title>简单实用图形验证码原生js特效代码</title><meta name="description" content="简单实用图形验证码原生js特效代码。" /> <meta name="keywords" content="简单实用,图形验证码,原生js,特效代码" /><meta name="author" content="js代码" /><meta name="Copyright" content="js代码" /><script type="text/javascript">function stops(){   return false;}document.oncontextmenu=stops;</script></head><body><div id="v_container" style="width: 200px;height: 50px;"></div><input type="text" id="code_input" value="" placeholder="请输入验证码"/><button id="my_button">验证</button></body><script src="http://www.jsdaima.com/Upload/201703/1490701707/gVerify.js"></script><script>var verifyCode = new GVerify("v_container");document.getElementById("my_button").onclick = function(){var res = verifyCode.validate(document.getElementById("code_input").value);if(res){alert("验证正确");}else{alert("验证码错误");}}</script></html>