jQuery代码: <script src="js/jquery-1.3.1.js" type="text/javascript"></script> <!-- 引入引用jquery的库文件 --> <script src="js/jquery.cookie.js" type="text/javascript"></script> <!-- 引入jQuery的cookie插件 --> <script type="text/javascript"> //初始化页面时验证是否记住了密码 $(document).ready(function() { if ($.cookie("rmbUser") == "true") { $("#rmbUser").attr("checked", true); $("#wsc-username").val($.cookie("userName")); $("#wsc-password").val($.cookie("passWord")); } }); function saveUserInfo() { if ($("#rmbUser").attr("checked") == true) { var userName = $("#wsc-username").val(); var passWord = $("#wsc-password").val(); $.cookie("rmbUser", "true", { expires: 7 }); // 存储一个带7天期限的 cookie $.cookie("userName", userName, { expires: 7 }); // 存储一个带7天期限的 cookie $.cookie("passWord", passWord, { expires: 7 }); // 存储一个带7天期限的 cookie } else { $.cookie("rmbUser", "false", { expires: -1 }); // 删除 cookie $.cookie("userName", '', { expires: -1 }); $.cookie("passWord", '', { expires: -1 }); } } </script> HTML代码: <body> <form action="" method="post"> <div class="form"> <div id="J_UserName" class="loginItem"> <label>用户名：</label> <input maxlength="200" value="" name="u_username" class="log_Field" id="wsc-username"> </div> <div class="loginItem" id="J_Password"> <label>密 码：</label> <input type="password" value="" maxlength="20" name="u_pwd" class="log_Field" id="wsc-password"> </div> <div class="loginRemember"> <input type="checkbox" checked="true" name="chkRememberUsername" class="checkbox" id="rmbUser"> <label for="rmbUser">记住用户名</label> <a href="#">忘记密码?</a> </div> <div class="loginItem loginButton" id="wait"> <input type="submit" value="登录" onclick="saveUserInfo()" class="button" id="log_Commit"> </div> </div><!--form div--> </form> ------------------------------------------------------------------------------------- 下面是jquery.cookie.js用法 $.cookie('the_cookie'); // 获得cookie $.cookie('the_cookie', 'the_value'); // 设置cookie $.cookie('the_cookie', 'the_value', { expires: 7 }); //设置带时间的cookie $.cookie('the_cookie', '', { expires: -1 }); // 删除 $.cookie('the_cookie', null); // 删除 cookie $.cookie('the_cookie', 'the_value', {expires: 7, path: '/', domain: 'jquery.com', secure: true});//新建一个cookie 包括有效期 路径 域名等