HarmonyOS 如何正确的打印对象？

可以使用JSON.stringify将object转为json,再将json使用JSON.parse将json转为object，示例如下：

interface Person {
  name: string;
  age: number;
  city: string;
}
function objToJSON(): void{
  let obj = {"name": "xxxx", "age": 30, "city": "xxx"} as Person;
  const str = JSON.stringify(obj);
  console.log('json result: '+ str)
  const person : Person = JSON.parse(str);
  console.log('person name: '+person.name+',person age:' +person.age)
}