打字。如何指定对象文字属性子集的类型？

interface Person {
  name: string;
  age: number;
  address: string;
}

const person: Person = {
  name: "John",
  age: 25,
  address: "123 Street"
};

const partialPerson = {
  name: "John",
  age: 25
} as Person; // 使用类型断言指定partialPerson为Person类型的子集

console.log(partialPerson.name); // 输出: John
console.log(partialPerson.age); // 输出: 25

interface Person {
  name: string;
  age: number;
  address: string;
}

function isPerson(obj: any): obj is Person {
  return obj && obj.name && obj.age && obj.address;
}

const person: Person = {
  name: "John",
  age: 25,
  address: "123 Street"
};

const partialPerson = {
  name: "John",
  age: 25
};

if (isPerson(partialPerson)) { // 使用类型守卫判断partialPerson是否为Person类型的子集
  console.log(partialPerson.name); // 输出: John
  console.log(partialPerson.age); // 输出: 25
}