为什么会报错哇

来源：3-2 indexDB（2）

慕盖茨6136029

2019-09-20 16:17:50

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>indexedDB</title>
</head>
<body>
    <script>
        var request = indexedDB.open('mytest',2);

        request.onsuccess = function(event){
            console.log(event.target.result);

        }
        // request.onupgradeneeded = function(){
        //     console.log('版本升级了')
        // }

        var user = {
            name:'008',
            age:12,
            sex:'male'
        }

        setTimeout(function(){
            var db = request.result;  //要操作的数据库，mytest
            db.createObjectStore('users',{keyPath:'name'}); //创建表格
            var transaction = db.transaction('users',IDBTransaction.READ_WRITE); //操作表格test1
            var store = transaction.objectStore('users')  //操作表格test1
            store.add(user);
        },300)
    </script>
</body>
</html>

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