{
    "title": "支持表头分组，通过在 cloumn 上设置 groupName 实现。",
    "body": {
        "type": "table",
        "data": {
            "items": [
                {
                    "engine": "Trident",
                    "browser": "Internet Explorer 4.2",
                    "platform": "Win 95+",
                    "version": "4",
                    "grade": "A"
                },
                {
                    "engine": "Trident",
                    "browser": "Internet Explorer 4.2",
                    "platform": "Win 95+",
                    "version": "4",
                    "grade": "B"
                },
                {
                    "engine": "Trident",
                    "browser": "AOL browser (AOL desktop)",
                    "platform": "Win 95+",
                    "version": "4",
                    "grade": "C"
                },
                {
                    "engine": "Trident",
                    "browser": "AOL browser (AOL desktop)",
                    "platform": "Win 98",
                    "version": "3",
                    "grade": "A"
                },
                {
                    "engine": "Trident",
                    "browser": "AOL browser (AOL desktop)",
                    "platform": "Win 98",
                    "version": "4",
                    "grade": "A"
                },
                {
                    "engine": "Gecko",
                    "browser": "Firefox 1.0",
                    "platform": "Win 98+ / OSX.2+",
                    "version": "4",
                    "grade": "A"
                },
                {
                    "engine": "Gecko",
                    "browser": "Firefox 1.0",
                    "platform": "Win 98+ / OSX.2+",
                    "version": "5",
                    "grade": "A"
                },
                {
                    "engine": "Gecko",
                    "browser": "Firefox 2.0",
                    "platform": "Win 98+ / OSX.2+",
                    "version": "5",
                    "grade": "B"
                },
                {
                    "engine": "Gecko",
                    "browser": "Firefox 2.0",
                    "platform": "Win 98+ / OSX.2+",
                    "version": "5",
                    "grade": "C"
                },
                {
                    "engine": "Gecko",
                    "browser": "Firefox 2.0",
                    "platform": "Win 98+ / OSX.2+",
                    "version": "5",
                    "grade": "D"
                }
            ]
        },
        "columns": [
            {
                "name": "engine",
                "label": "Rendering engine",
                "groupName": "A"
            },
            {
                "name": "browser",
                "label": "Browser",
                "groupName": "A"
            },
            {
                "name": "platform",
                "label": "Platform(s)",
                "groupName": "B"
            },
            {
                "name": "version",
                "label": "Engine version",
                "groupName": "B"
            },
            {
                "name": "grade",
                "label": "CSS grade"
            }
        ]
    }
}