Qt - Json数据解析

json数据格式：

{  
  "name": "Alice",  
  "age": 30,  
  "isStudent": false,  
  "courses": [  
    {  
      "courseName": "Mathematics",  
      "credits": 3,  
      "instructor": {  
        "name": "Dr. Smith",  
        "email": "smith@example.com"  
      }  
    },  
    {  
      "courseName": "Physics",  
      "credits": 4,  
      "instructor": {  
        "name": "Dr. Johnson",  
        "email": "johnson@example.com"  
      }  
    }  
  ]  
}

怎么将上面的JSON语句用Qt构建出来呢，可以利用JSON解析工具来理清结构：https://jsontool.cn/