function getInfo(){
//定义一个数组goodsInfo,用来存储商品信息
var goodsInfo = new Array();
//取得商品ID
goodsInfo[0] = document.getElementsByName("goods_id")[0].value; //图片路径
goodsInfo[1] = document.getElementsByName("Images_url")[0].value;
//商品名称
goodsInfo[2] = document.getElementsByName("goods_name")[0].value;
//商品单价
goodsInfo[3] = document.getElementsByName("unit_price")[0].value;
//定义一个数组myCart,用来存储购物车中的商品的信息
var goods = new Array();
//将获得商品信息存入数组goods
goods[0] = goodsInfo;
//将数组myCart存入cookie
cookie.Set("myCart",goods);
}
var cookie={
//写入cookie,name为Cookie名,value为Cookie值
Set:function(name,value){
alert("111");
//定义一个时间对象
var exdate = new Date(); //设置cookie过期时间为30天,8.64e7 一天 3.6e6 一小时
exdate.setTime(exdate.getTime() + (8.64e7*30) );
//Set cookie
document.cookie = name + '='+ value +';'+ 'expires='+ exdate.toUTCString() + 'path=/;domain=.taoyygo.com;secure=false';
}
}
请教,如果用这种方法的话,是不是只能添加一个物品啊
每次get了之后,会覆盖cookie?这样的话就只能获取一个物品了?
怎么完善的用js写一个购物车呢,,愁死了..谢谢大师们[email protected]如果有成品
//定义一个数组goodsInfo,用来存储商品信息
var goodsInfo = new Array();
//取得商品ID
goodsInfo[0] = document.getElementsByName("goods_id")[0].value; //图片路径
goodsInfo[1] = document.getElementsByName("Images_url")[0].value;
//商品名称
goodsInfo[2] = document.getElementsByName("goods_name")[0].value;
//商品单价
goodsInfo[3] = document.getElementsByName("unit_price")[0].value;
//定义一个数组myCart,用来存储购物车中的商品的信息
var goods = new Array();
//将获得商品信息存入数组goods
goods[0] = goodsInfo;
//将数组myCart存入cookie
cookie.Set("myCart",goods);
}
var cookie={
//写入cookie,name为Cookie名,value为Cookie值
Set:function(name,value){
alert("111");
//定义一个时间对象
var exdate = new Date(); //设置cookie过期时间为30天,8.64e7 一天 3.6e6 一小时
exdate.setTime(exdate.getTime() + (8.64e7*30) );
//Set cookie
document.cookie = name + '='+ value +';'+ 'expires='+ exdate.toUTCString() + 'path=/;domain=.taoyygo.com;secure=false';
}
}
请教,如果用这种方法的话,是不是只能添加一个物品啊
每次get了之后,会覆盖cookie?这样的话就只能获取一个物品了?
怎么完善的用js写一个购物车呢,,愁死了..谢谢大师们[email protected]如果有成品
cookie只能放字符串的,数组和对象,要先格式化成字符串的形式
Array.prototype.remove=function(n){if(isNaN(parseInt(n))) return false;if(n>=this.length || n<0) return false;for(i=n;i<this.length-1;i++) this[i]=this[i+1];this.pop();return true;}
Array.prototype.add=function(obj){this[this.length]=obj;}
Array.prototype.insert=function(n,o){if(isNaN(parseInt(n))) return false;if(n>=this.length || n<1) return false;for(i=this.length-1;i>=n;i--)this[i+1]=this[i];this[n]=o;return true;}String.prototype.Trim = function()
{
return this.replace(/^\s+/g,"").replace(/\s+$/g,"");
}
function JSCookie()
{
this.GetCookie = function(key)
{
var cookie = document.cookie;
var cookieArray = cookie.split(';');
var getvalue = "";
for(var i = 0;i<cookieArray.length;i++)
{
if(cookieArray[i].Trim().substr(0,key.length) == key)
{
getvalue = cookieArray[i].Trim().substr(key.length + 1);
break;
}
}
return getvalue;
};
this.GetChild = function(cookiekey,childkey)
{
var child = this.GetCookie(cookiekey);
var childs = child.split('&');
var getvalue = "";
for(var i = 0;i < childs.length;i++)
{
if(childs[i].Trim().substr(0,childkey.length) == childkey)
{
getvalue = childs[i].Trim().substr(childkey.length + 1);
break;
}
}
return getvalue;
};
this.SetCookie = function(key,value,expire,domain,path)
{
var cookie = "";
if(key != null && value != null)
cookie += key + "=" + value + ";";
if(expire != null)
cookie += "expires=" + expire.toGMTString() + ";";
if(domain != null)
cookie += "domain=" + domain + ";";
if(path != null)
cookie += "path=" + path + ";";
document.cookie = cookie;
};
this.Expire = function(key)
{
expire_time = new Date();
expire_time.setFullYear(expire_time.getFullYear() - 1);
var cookie = " " + key + "=e;expires=" + expire_time + ";"
document.cookie = cookie;
}
}
var cookie;
var data;
var tb
function show(){
var tb = document.createElement("table");
tb.id="tbl";
var tr = tb.insertRow();
var td = tr.insertCell();
td.innerHTML = "商品ID";
td = tr.insertCell();
td.innerHTML = "数量";
td = tr.insertCell();
td.innerHTML = "价格";
td = tr.insertCell();
td.innerHTML = "操作";
for(var i=0;i<data.length;i++){
tr = tb.insertRow();
td = tr.insertCell();
td.innerHTML = "<input value='" + data[i][0] + "' id='id" + i + "' onblur='update(" + i + ");'>";
td = tr.insertCell();
td.innerHTML = "<input value='" + data[i][1] + "' id='name" + i + "' onblur='update(" + i + ")'>";
td = tr.insertCell();
td.innerHTML = "<input value='" + data[i][2] + "' id='price" + i + "' onblur='update(" + i + ")'>";
td = tr.insertCell();
td.innerHTML = "<input type='button' value='修改' onclick='update(" + i + ")'><input type='button' value='删除' onclick='del(" + i + ")'>";
}
var pad = document.getElementById("pad");
pad.innerHTML = "";
pad.appendChild(tb);
}
function add(){
var tb = document.getElementById("tbl");
var i = tb.rows.length-1;
var tr = tb.insertRow();
var td = tr.insertCell();
td.innerHTML = "<input value='' id='id" + i + "' onblur='update(" + i + ")'>";
td = tr.insertCell();
td.innerHTML = "<input value='' id='name" + i + "' onblur='update(" + i + ")'>";
td = tr.insertCell();
td.innerHTML = "<input value='' id='price" + i + "' onblur='update(" + i + ")'>";
td = tr.insertCell();
td.innerHTML = "<input type='button' value='修改' onclick='update(" + i + ")'><input type='button' value='删除' onclick='del(" + i + ")'>";
data.add(['','','']);
}
function update(n){
data[n][0] = document.getElementById("id"+n).value;
data[n][1] = document.getElementById("name"+n).value;
data[n][2] = document.getElementById("price"+n).value;
}
function del(n){
data.remove(n);
show();
}
function saveit(){
var s = "";
for(var i=0;i<data.length;i++){
s += "['" + data[i][0] + "','" + data[i][1] + "','" + data[i][2] + "']";
if(i!=data.length-1) s += ",";
}
s = "[" + s + "]";
var expire_time = new Date();
expire_time.setFullYear(expire_time.getFullYear() + 1);
cookie.SetCookie("data",s,expire_time,null,"/");
}window.onload = function(){
cookie = new JSCookie();
var s = cookie.GetCookie("data");
if(s == "") data = [];
else eval("data=" + s);
show();
}
</script>
<input type="button" value="添加" onclick="add()">
<input type="button" value="保存" onclick="saveit()">
<div id="pad"></div>
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