h5中使用json对象

最新推荐文章于 2024-12-11 16:52:32 发布

转载最新推荐文章于 2024-12-11 16:52:32 发布 · 3.3k 阅读

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<!DOCTYPE html>
<html>
    <head>
     <meta charset="UTF-8">
     <meta name="viewport"   content="width=device-width, height=device-height, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
     <title>json对象用法</title>
     <link rel="stylesheet" href="//g.alicdn.com/de/prismplayer/2.6.0/skins/default/aliplayer-min.css" />
     <script type="text/javascript" src="//g.alicdn.com/de/prismplayer/2.6.0/aliplayer-min.js"></script>
    </head>
    <body>
        <div  class="prism-player" id="J_prismPlayer" style="position: absolute"></div>
        <script>

        var students = {
          xiaomin: {
            name: "xiaoming",
            grade: 1
          },
          teemo: {
            name: "teemo",
            grade: 3
          }
        }

        students = JSON.stringify(students); //将JSON转为字符串存到变量里
        console.log(students);
        localStorage.setItem("students",students);//将变量存到localStorage里

        var newStudents = localStorage.getItem("students");
        newStudents = JSON.parse(students); //转为JSON
        console.log(newStudents); // 打印出原先对象
    //  alert(newStudents.length);
        alert(newStudents.xiaomin.name);


         //json数组类型字符串取值
        var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]';
        var jsonObj =  JSON.parse(jsonStr);//转换为json对象
        for(var i=0;i<jsonObj.length;i++){
                alert(jsonObj[i].id);  //取json中的值
        }
        console.log(jsonObj)
        var jsonStr1 = JSON.stringify(jsonObj)
        console.log(jsonStr1+"jsonStr1")

        </script>
    </body>
</html>