js里面的cookie保存登录名
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title></title> <script type="text/javascript"> //获取cookie function getCookie(c_name) { if (document.cookie.length > 0) { c_start = document.cookie.indexOf(c_name + "=") if (c_start != -1) { c_start = c_start + c_name.length + 1 c_end = document.cookie.indexOf(";", c_start) if (c_end == -1) c_end = document.cookie.length return unescape(document.cookie.substring(c_start, c_end)) } } return "" } function setCookie(c_name, value, expiredays) { var exdate = new Date() exdate.setDate(exdate.getDate() + expiredays) document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : "; expires=" + exdate.toGMTString()) } //执行加载 function checkCookie() { username = getCookie(‘username‘); //获取cookie if (username != null && username != "") { alert(‘Welcome again ‘ + username + ‘!‘) } else { username = prompt(‘Please enter your name:‘, "") if (username != null && username != "") { setCookie(‘username‘, username, 365) } } } </script> </head> <body onload="checkCookie()"> </body> </html>
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