网页运行代码窗口
<script>var userAgent = navigator.userAgent.toLowerCase();var is_opera = userAgent.indexOf('opera') != -1 && opera.version();var is_saf = userAgent.indexOf('applewebkit') != -1 || navigator.vendor == 'Apple Computer, Inc.';var is_webtv = userAgent.indexOf('webtv') != -1;var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera && !is_saf && !is_webtv) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);function runCode(obj) { var winname = window.open('', "_blank", ''); winname.document.open('text/html', 'replace');winname.opener = null; // 防止代码对页面修改 winname.document.write(obj.value); winname.document.close();}function saveCode(obj) { var winname = window.open('', '_blank', 'top=10000'); winname.document.open('text/html', 'replace'); winname.document.write(obj.value); winname.document.execCommand('saveas','','code.htm'); winname.close();}function copycode(obj) {if(is_ie && obj.style.display != 'none') { var rng = document.body.createTextRange(); rng.moveToElementText(obj); rng.scrollIntoView(); rng.select(); rng.execCommand("Copy"); rng.collapse(false);}}</script><textarea id=code cols=80 rows=15></textarea> <br /><input type="button"onclick=runCode(code) value="运行代码" style="border:1px solid #B1B4CD;background:#696D81;color:#FFFFFF; padding-top:5px;"><input type="button"onclick=copycode(code) style="border:1px solid #B1B4CD;background:#696D81;color:#FFFFFF; padding-top:5px;"value="复制代码" onclick="copycode(runcode3)"> <input type="button"onclick=saveCode(code) style="border:1px solid #B1B4CD;background:#696D81;color:#FFFFFF; padding-top:5px;"value="另存代码" onclick="saveCode(runcode3)">?