localStorage:打开页面刷新时次数增加，关闭后数据仍存在，保持不变
用法：localStorage.xx=xxx;
< html lang=“en”>
< head>
< meta charset=“UTF-8”>
< title>访问网站计数< /title>
< /head>
< body>
< script type=“text/javascript”>
if(localStorage.sum){
localStorage.sum=Number(localStorage.sum)+1;
}
else{
localStorage.sum=1;
}
document.write(“访问网站的次数：”+localStorage.sum);
< /script>
< /body>
< /html>
SessionStorage:打开页面刷新时次数增加，关闭页面后重新计数。
用法：SessionStorage.xx=xxx;
< html lang=“en”>
< head>
< meta charset=“UTF-8”>
< title>访问网站计数< /title>
< /head>
< body>
< script type=“text/javascript”>
if(sessionStorage.sum){
sessionStorage.sum=Number(sessionStorage.sum)+1;
}
else{
sessionStorage.sum=1;
}
document.write(“访问网站的次数：”+sessionStorage.sum);
< /script>
< /body>
< /html>
