定义类型以生成嵌套JSON的更好方法

class JSONKeyValuePair {
  key: string;
  value: any;

  constructor(key: string, value: any) {
    this.key = key;
    this.value = value;
  }

  toJSON(): object {
    return { [this.key]: this.value };
  }
}

class JSONObject {
  properties: JSONKeyValuePair[];

  constructor() {
    this.properties = [];
  }

  addProperty(key: string, value: any): void {
    const pair = new JSONKeyValuePair(key, value);
    this.properties.push(pair);
  }

  toJSON(): object {
    const json: object = {};
    for (const pair of this.properties) {
      Object.assign(json, pair.toJSON());
    }
    return json;
  }
}

// 创建一个嵌套JSON结构
const jsonObject = new JSONObject();
const innerObject = new JSONObject();
innerObject.addProperty("innerKey", "innerValue");
jsonObject.addProperty("outerKey", innerObject);

// 生成JSON字符串
const jsonString = JSON.stringify(jsonObject.toJSON());
console.log(jsonString);