改版了網上的一個js操作userdata

最後更新：2018-12-08 來源：互聯網

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複製代碼代碼如下:<input type=text id=a><button onclick="Session.save('a',a.value);"><button onclick="alert(Session.load('a'))">
<body>
<SCRIPT LANGUAGE="JavaScript">
<!--

//-->
</SCRIPT>

下面是其它網友文章:
js 儲存大量資料.
IE系列儲存到電腦上,直到刪除檔案.
FF關閉則刪除複製代碼代碼如下:<script>
//userData類
var RuserData={
o:null,
timeExpires:7,
browser:'',
//初始化userdata
init:function()
{
if(this.browser != '')
return true;
if(window.ActiveXObject)//for IE {
try{
this.o=document.createElement("input");
this.o.id="Ruserdata";
this.o.type="hidden";
this.o.style.behavior="url(#default#userData)";
this.browser='ie';
document.body.appendChild(this.o);
return true;
}catch(e){return false;}
}else if(window.sessionStorage)//FF 2.0+*/
{
try{
this.o=window.sessionStorage;
this.browser='ff';
return true;
}catch(e){return false;}
}
return false;
},
setVal:function(key,val,timeout/*正定義逾時時間,為空白用預設值*/){
this.init();
if(this.browser == 'ie'){
try{
this.o.load(key);
this.o.expires=typeof timeout == 'undefined' ? this.getTimeLimit(this.timeExpires) : this.getTimeLimit(timeout);
this.o.setAttribute('value',val);
this.o.save(key);
return true;
}catch(e){return false}
}else if(this.browser == 'ff'){
try{this.o.setItem(key,val);return true;}
catch(e){return false}
}
},
getVal:function(key){
this.init();
if(this.browser == 'ie'){
try{
this.o.load(key);
return this.o.getAttribute('value');
}catch(e){return false;}
}else if(this.browser == 'ff'){
try{return this.o.getItem(key);}
catch(e){return false}
}
},
delVal:function(key){
this.init();
if(this.browser == 'ie'){
try{
this.o.load(key);
this.o.expires=new Date(315532799000).toUTCString();
this.o.save(key);
return true;
}
catch(e){return false;}
}else if(this.browser == 'ff'){
try{this.o.removeItem(key);return true;}
catch(e){return false}
}
},
getTimeLimit:function(days/*設定逾時天數*/){
var d=new Date();
d.setDate(d.getDate() + days);
return d.toUTCString();
}
};
window.onload=function(){
//alert(RuserData.delVal('renchao'));
//alert(RuserData.setVal('renchao','指令碼之家www.jb51.net'));
alert(RuserData.getVal('renchao'));
}
</script>

使用方法: 複製代碼代碼如下:window.onload=function(){
//alert(RuserData.delVal('renchao'));
//alert(RuserData.setVal('renchao','指令碼之家www.jb51.net'));
alert(RuserData.getVal('renchao'));
}

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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