如何在TS中使用变量为对象成员赋值

interface MyObject {
  name: string;
  age: number;
}

const obj: MyObject = {
  name: 'John',
  age: 25,
};

const propertyName = 'name';
obj[propertyName] = 'David'; // 使用点语法为对象成员赋值

console.log(obj); // 输出: { name: 'David', age: 25 }

interface MyObject {
  name: string;
  age: number;
}

const obj: MyObject = {
  name: 'John',
  age: 25,
};

const propertyName = 'name';
obj[propertyName] = 'David'; // 使用方括号语法为对象成员赋值

console.log(obj); // 输出: { name: 'David', age: 25 }