{
    "data": [{
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            "screenId": 1,
            "screenNo": 1,
            "screenType": 1,
            "screenTitle": "1",
            "contextType": 1,
            "contextPath": "http://192.168.1.187:88/files/image/tiger.jpg",
            "contextLevel": 3
        },
        {
            "meetingId": "123456789",
            "screenId": 2,
            "screenNo": 2,
            "screenType": 1,
            "screenTitle": "2",
            "contextType": 2,
            "contextPath": "http://192.168.1.187:88/files/video/forTest.mp4",
            "contextLevel": 3
        },
        {
            "meetingId": "123456789",
            "screenId": 2,
            "screenNo": 2,
            "screenType": 2,
            "screenTitle": "3",
            "contextType": 2,
            "contextPath": "http://192.168.1.187:88/files/video/forTest.mp4",
            "contextLevel": 3
        },
        {
            "meetingId": "123456789",
            "screenId": 2,
            "screenNo": 2,
            "screenType": 2,
            "screenTitle": "4",
            "contextType": 1,
            "contextPath": "http://192.168.1.187:88/files/image/tiger.jpg",
            "contextLevel": 3
        }
    ],
    "msgType": "MEETING_SCREEN_RESP",
    "uid": "cc187cd3-f36d-4b8a-9500-1f826e709b5d",
    "code": 0
}