以下常量，加入一个 ViewController 后，无法 run，一直无限 indexing，cpu 高到 90% 以上

let popularTableData = [
        [
            "id": 1,
            "title": "xxx"
        ],
        [
            "id": 2,
            "title": "xxx"
        ],
        [
            "id": 3,
            "title": "xxx"
        ],
        [
            "id": 4,
            "title": "xxx"
        ],
        [
            "id": 5,
            "title": "xxx"
        ],
        [
            "id": 6,
            "title": "xxx"
        ],
        [
            "id": 7,
            "title": "xxx"
        ],
        [
            "id": 8,
            "title": "xxx"
        ],
        [
            "id": 9,
            "title": "xxx"
        ],
        [
            "id": 10,
            "title": "xxx"
        ]
    ]