var xhr = new XMLHttpRequest();
xhr.open('get','xx.xx',false);
xhr.onreadyStateChange = function(){
if(xhr.status == 200 && xhr.readyState == 4) {
console.log('finish');
}
}
xhr.send(null);
console.log('test');
是卡在send之后吗？也就是finish出来之后才出来test
![[웹 프런트엔드] Node.js 빠른 시작](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
先出来 test 再出来 finish
试试，呵呵，无效不要钱