HarmonyOS 鸿蒙Next：开启了严格的ARKTS代码检查后，通过JSON.parse解析JSON后如何获取JSON对象值，或有其他方法

在ArkTS中可以取JSON的值，示例代码如下：

class address {
  street: string;
  city: string;
  state: string;

  constructor(street: string, city: string, state: string) {
    this.street = street;
    this.city = city;
    this.state = state;
  }
}

class jsonObj {
  address: address
  name: string;
  age: number;
  phoneNumbers: Array<string>;

  constructor(name: string, age: number, address: address, phoneNumbers: Array<string>) {
    this.name = name;
    this.age = age;
    this.address = address;
    this.phoneNumbers = phoneNumbers;
  }
}

@Entry
@Component
struct Index {
  @State message: string = 'Hello World'

  build() {
    Row() {
      Column() {
        Text(this.message).fontSize(50).fontWeight(FontWeight.Bold)
        Button() {
          Text("打印")
        }.width(150).height(75).onClick(() => {
          let str = ["555-1234", "555-5678"]
          let add = new address("123 Main St", "Anytown", "CA");
          let json = new jsonObj("john", 30, add, str)
          console.log(JSON.stringify(json.name));
          console.log(JSON.stringify(json.age));
          console.log(JSON.stringify(json.address));
          console.log(JSON.stringify(json.phoneNumbers));
        })
      }.width('100%')
    }.height('100%')
  }
}

系统规格问题：鸿蒙目前暂不支持，因为开启了严格的ARKTS语言检查，所以使用的data对象必须进行class类型的自定义，否则无法使用

解析字符串为对象，取字符串中的某些字段的值参考：

// 定义类型接口： 
interface userRespType {
  nickname: string,
  avatar: string
}

interface dataType {
  roomId: string,
  nativeUrl: string,
  status: string,
  userResp: Array<userRespType>
}

interface jsonObjectType {
  reqId: string,
  code: number,
  msg: string,
  data: dataType
}

let userResp: userRespType = {
  nickname: "一个很长的名字哈哈哈",
  avatar: "https://aopsmsg.pingan.com.cn/group4/M01/2A/3C/HhDEeFqcsfiAY06aAAA0Fw-3GV0645.jpg#w=210;h=210"
}
let data: dataType = {
  roomId: "823688",
  nativeUrl: "native://enterLiveRoom?RoomId=823688",
  status: "1",
  userResp: [userResp]
}
let jsonObj: jsonObjectType = {
  reqId: "2b2258ae54e3101a",
  code: 0,
  msg: "success",
  data: data
}
let json: string =
  JSON.stringify(jsonObj) // 假设test为JSON.prase解析后的数据 
let test:jsonObjectType = JSON.parse(json) 
console.info(test.msg) 
console.info(test.data.userResp[0].nickname)