如何使用jquery datatable加载本地JSON变量

   <thead>
        <tr>
            <th>ID</th>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
    </thead>
   <tbody></tbody>
</table>

var jsonData = [
    {
        "id": "1",
        "name": "Tiger Nixon",
        "position": "System Architect",
        "office": "Edinburgh",
        "age": "61",
        "start_date": "2011/04/25",
        "salary": "$320,800"
    },
    // ... 更多数据
];

$(document).ready(function() {
    $('#example').DataTable({
        data: jsonData,
        columns: [
            { data: 'id' },
            { data: 'name' },
            { data: 'position' },
            { data: 'office' },
            { data: 'age' },
            { data: 'start_date' },
            { data: 'salary' }
        ]
    });
});