table嵌套循环数据

[
    {
        "mhcode":"7017",
        "jk":"HHAD",
        "data":[
            {
                "jackpot":"HHAD",
                "option":"2[1]@1.430",
                "mhcode":"7017"
            }
        ]
    },
    {
        "mhcode":"7027",
        "jk":"HAD",
        "data":[
            {
                "jackpot":"HAD",
                "option":"1@1.570,X@2.350,2@4.056",
                "mhcode":"7027"
            },
            {
                "jackpot":"TTG",
                "option":"X@1.200",
                "mhcode":"7027"
            }
        ]
    },
    {
        "mhcode":"7030",
        "jk":"HHAD",
        "data":[
            {
                "jackpot":"HHAD",
                "option":"1[1]@1.600",
                "mhcode":"7030"
            }
        ]
    }
]

<tbody id="firstr" *ngIf="betline">

<tr *ngFor="let betline of betline">

<td>

　　<strong>{{betline.mhcode}}</strong>

　　<ul *ngFor="let key of betline.data">

　　　　<li>{{key.jackpot}}&nbsp;&nbsp;</li>

　　　　<li>{{key.option}}</li>

　　</ul>

</td>

</tr>

</tbody>