1、结论
JavaScript对象普通键（非指向函数的键）this指向是window。
2、示例
<!DOCTYPE html><html lang="zh"><head><meta charset="UTF-8" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta http-equiv="X-UA-Compatible" content="ie=edge" /><title>JavaScript对象this指向(普通键this指向 非指向函数的键)</title></head><body><script type="text/javascript">var a=1;var b = {a: 2,c: this.a + 10,d: eval(console.log(this)),getA: function() {console.log(this.a);}};//setTimeout的this指向window,相当于window.setTimeout setTimeout(b.getA, 10); //1//this指向window console.log(b.c); //11 //this指向b对象 b.getA(); //2</script></body></html>
输出：
