<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "">
<html><head> <meta http-equiv="Content-Type" content="text/html; charset=GB2312" /> <title>cookie处理函数练习(为我所写，非我所想:改善面向对象)</title> <script language="JavaScript" type="text/javascript"> function addCookie(objName, objValue, objHours) { //添加cookievar str = objName + "=" + escape(objValue); if (objHours > 0) { //为0时不设定过期时间，浏览器关闭时cookie自动消失 var date = new Date(); var ms = objHours * 3600 * 1000; date.setTime(date.getTime() + ms); str += "; expires=" + date.toGMTString(); } document.cookie = str; alert("添加cookie成功"); } function getCookie(objName) { //获取指定名称的cookie的值 var arrStr = document.cookie.split("; "); for (var i = 0; i < arrStr.length; i++) { var temp = arrStr[i].split("="); if (temp[0] == objName) return unescape(temp[1]); } } function delCookie(name) { //为了删除指定名称的cookie，可以将其过期时间设定为一个过去的时间 var date = new Date(); date.setTime(date.getTime() - 10000); document.cookie = name + "=a; expires=" + date.toGMTString(); } function allCookie() { //读取所有保存的cookie字符串 var str = document.cookie; if (str == "") { str = "没有保存任何cookie"; } alert(str); } function $(m, n) { return document.forms[m].elements[n].value; } function add_() { var cookie_name = $("myform", "cookie_name"); var cookie_value = $("myform", "cookie_value"); var cookie_expireHours = $("myform", "cookie_expiresHours"); addCookie(cookie_name, cookie_value, cookie_expireHours); } function get_() { var cookie_name = $("myform", "cookie_name"); var cookie_value = getCookie(cookie_name); alert(cookie_value); } function del_() { var cookie_name = $("myform", "cookie_name"); delCookie(cookie_name); alert("删除成功"); }</script></head><body> <form name="myform"> <div> <label for="cookie_name">名称</label><input type="text" name="cookie_name" /> </div> <div> <label for="cookie_value"> 值</lable><input type="text" name="cookie_value" /> </div> <div> <label for="cookie_expireHours"> 多少个小时过期</lable><input type="text" name="cookie_expiresHours" /> </div> <div> <input type="button" value="添加该cookie" οnclick=" add_()" /> <input type="button" value="读取所有cookie" οnclick="allCookie()" /> <input type="button" value="读取该名称cookie" οnclick="get_()" /> <input type="button" value="删除该名称cookie" οnclick=" del_()" /> </div> </form> <hr /></body></html>