{
    "key": "value",
    "key2": -123.456,
    "key3": {
        "name":"测试文字",
        "tel":"05318888"
    },
    "key4":[1,2,3,4],
    "key5":["a","b","c"],
    "key0":null
    ,
    "books": [
      {
        "title": "FBI心理学",
        "edition": 1,
        "serialNumber": "SN001",
        "author": "Tom"
      },
      {
        "title": "平凡的世界",
        "edition": 2,
        "serialNumber": "SN002",
        "author": "路遥"
      },
      {
        "title": "童年",
        "edition": 1,
        "serialNumber": "SN003",
        "author": "高尔基"
      }
    ]
  }

场景：在后台应用程序中将响应数据封装成JSON格式，传到前台页面之后，需要将JSON格式转换为JavaScript对象，然后在网页中使用该数据。

这是一个xml语言的代码，

  <request>
  <firstName>这里是名字</firstName>
  <lastName>这里是姓氏</lastName>
  <email>12345678@126.com</email>
  </request>

用json写如下：

 {
    "request": {
      "firstName": "这里是名字",
      "lastName": "这里是姓氏",
      "email": "12345678@126.com"
    }
  }

以二级学院为例，写一段能展示下设机构的json：

const university = {
    "name": "山东科技大学",
    "location": "青岛市黄岛区",
    "colleges": [
      {
        "name": "能源学院",
        "departments": ["计算机科学", "电子工程", "机械原理"]
      },
      {
        "name": "艺术学院",
        "departments": ["古典文学", "表演学", "社会科学"]
      },
      {
        "name": "经管学院",
        "departments": ["金融学", "市场管理", "管理学"]
      }
    ]
  };
  
  console.log(university);