HTTP文本域

      "vr": {
        "attrs": {
          //"prepend": "http://"
          "placeholder": "http://"
        },
        "meta": {
          "rowId": "1",
          "tabId": "1",
          "span": 24
        }
      },

VR varchar 255 0 -1 0 0 0 VR http utf8 utf8_general_ci 0 0 0 0 0 0 0
AR varchar 255 0 -1 0 0 0 AR http utf8 utf8_general_ci 0 0 0 0 0 0 0
VIDEO varchar 255 0 -1 0 0 0 3D http utf8 utf8_general_ci 0 0 0 0 0 0 0
THREE-D varchar 255 0 -1 0 0 0 普通视频 http utf8 utf8_general_ci 0 0 0 0 0 0 0