以下代码的输出是什么？

var name = 'window'
const obj = {
    name: 'obj',
    sayName:function() {
        console.log(this.name)
    },
}
obj.sayMyName = () => {
    console.log(this.name)
}
const fn1 = obj.sayName
const fn2 = obj.sayMyName
fn1() 
obj.sayName() 
fn2() 
obj.sayMyName()