如何在多个JSON对象中合并子对象？

function mergeSubObjects(...jsonObjects) {
  let result = {};
  
  jsonObjects.forEach(jsonObject => {
    const subObjects = Object.values(jsonObject);
    
    subObjects.forEach(subObject => {
      const keys = Object.keys(subObject);
      
      keys.forEach(key => {
        if (result.hasOwnProperty(key)) {
          // 存在相同的键，选择合并方式，这里演示采用覆盖方式
          result[key] = subObject[key];
        } else {
          // 不存在相同的键，直接添加子对象
          result[key] = subObject[key];
        }
      });
    });
  });
  
  return result;
}

// 示例用法
const jsonObject1 = JSON.parse('{"obj1": {"key1": "value1"}}');
const jsonObject2 = JSON.parse('{"obj2": {"key2": "value2"}}');
const jsonObject3 = JSON.parse('{"obj3": {"key3": "value3"}}');

const mergedObject = mergeSubObjects(jsonObject1, jsonObject2, jsonObject3);
const mergedJSONString = JSON.stringify(mergedObject);

console.log(mergedJSONString);