我应该放什么来替换错误的"this“上下文？

const obj = {
  name: 'John',
  sayHello: function() {
    const innerFunc = () => {
      console.log(`Hello, ${this.name}!`);
    };
    innerFunc();
  }
};
obj.sayHello(); // Output: Hello, John!

const obj1 = {
  name: 'John',
  sayHello: function() {
    function innerFunc() {
      console.log(`Hello, ${this.name}!`);
    }
    const boundFunc = innerFunc.bind(obj1);
    boundFunc();
  }
};
obj1.sayHello(); // Output: Hello, John!

const obj2 = {
  name: 'John',
  sayHello: function() {
    function innerFunc() {
      console.log(`Hello, ${this.name}!`);
    }
    innerFunc.call(obj2);
  }
};
obj2.sayHello(); // Output: Hello, John!