HTML5：
<1> localStorage 没有时间限制
<2> sessionStorage 针对session数据存储, 浏览器关闭则失效
cookie缺点: cookie不适合大量数据存储
<1> localStorage
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>localStorage</title>
<script src="myjavascript.js"></script>
</head>
<body>
<textarea id="ta" style="width:200px; height: 200px"></textarea>
<button id="btn">save</button>
</body>
</html>
var ta;
var button;
window.onload = function(){
ta = document.getElementById("ta");
if(localStorage.text)
ta.value = localStorage.text;
button = document.getElementById("btn");
button.onclick = function () {
localStorage.text = ta.value;
}
}
点击save按钮之后, 刷新页面, 甚至关闭浏览器再打开此页面都会显示mirror
2. sessionStorage
跟上面类似
时间： 2024-11-03 21:20:14