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    "id": "1",
    "username": "exhibitor1",
    "password": "123456",
    "company_name": "未来科技",
    "logo": "https://picsum.photos/300/300",
    "phone": "13900000001",
    "address": "北京市朝阳区",
    "description": "专注于人工智能和大数据技术的创新企业",
    "images": [
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        "id": 1,
        "name": "公司前台",
        "url": "https://picsum.photos/400/300?random=1",
        "size": 1024000
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      {
        "id": 2,
        "name": "产品展示",
        "url": "https://picsum.photos/400/300?random=2",
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      {
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        "name": "团队合影",
        "url": "https://picsum.photos/400/300?random=3",
        "size": 1280000
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    ],
    "videos": [
      {
        "id": 1,
        "name": "公司介绍视频",
        "url": "https://samplelib.com/lib/preview/mp4/sample-5s.mp4",
        "size": 5242880
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    ]
  },
  {
    "id": "2",
    "username": "exhibitor2",
    "password": "123456",
    "company_name": "绿色能源",
    "logo": "https://picsum.photos/300/300",
    "phone": "13900000002",
    "address": "上海市浦东新区",
    "description": "致力于可再生能源技术的研发和应用",
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        "name": "风力发电机",
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]