localStorage，sessionStorage
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<textarea id="text" cols="80" rows="10"></textarea>
<input type="button" value="set" id="btn-set">
<input type="button" value="get" id="btn-get">
</body>
<script>
var btnSet = document.querySelector('#btn-set');
var btnGet = document.querySelector('#btn-get');
var text = document.querySelector('#text')
btnGet.addEventListener('click',function(){
/* if(window.localStorage){
text.value = localStorage['key1'];
}*/
if(window.sessionStorage){
/*alert("支持");*/
text.value = sessionStorage['key1'];
}
});
btnSet.addEventListener('click', function () {
/* localStorage['key1'] = text.value;*/
sessionStorage['key1'] = text.value;
});
</script>
</html>
