localStorage对象简单应用 -

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

<script>

    /*if(a==0){localStorage.setItem("key","0");}//以“key”为名称存储一个值“value”

    a = localStorage.getItem("key");*/

    //获取名称为“key”的值

    // localStorage.removeItem("key");//删除名称为“key”的信息。

    // localStorage.clear();//清空localStorage中所有信息

    if(!localStorage.getItem("key")){

        a = 0;

        localStorage.setItem("key","0");

    }else{

        a = localStorage.getItem("key");

        localStorage.setItem("key",++a);

    }

    document.write(a);

    // localStorage.clear();

    /*上面这是一种方法*/

    /*下面也是一种方法，pagecount是localStorage的一个自带属性*/

    if (localStorage.pagecount)

    {

        localStorage.pagecount=Number(localStorage.pagecount) +1;

    }

    else

    {

        localStorage.pagecount=1;

    }

    document.write("Visits "+ localStorage.pagecount + " time(s).");

</script>

</body>

</html>
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