编译错误:无法在此上下文中隐式捕获“this”

const person = {
  name: "John",
  sayHello: function() {
    console.log("Hello, " + this.name);
  }
};

person.sayHello(); // 输出：Hello, John

const person = {
  name: "John",
  sayHello: () => {
    console.log("Hello, " + this.name);
  }
};

person.sayHello(); // 报错：无法在此上下文中隐式捕获“this”

const person = {
  name: "John",
  sayHello: function() {
    console.log("Hello, " + this.name);
  }
};

person.sayHello(); // 输出：Hello, John

const person = {
  name: "John",
  sayHello: function() {
    console.log("Hello, " + this.name);
  }
};

const sayHello = person.sayHello.bind(person);
sayHello(); // 输出：Hello, John