js阻塞线程方法

var timeOutFunc = () => {return new Promise((a, b) => {setTimeout(async () => {console.log(2)await timeOutFunc()console.log(1)}, 1000);});
}
await timeOutFunc()
console.log(3)

执行上面的代码会阻塞住，无限打印2，不会打印1和3