如何用使用js的promise和ajax编写一个并发上传文件程序？
网友回复
<script>
// AJAX call 1
function call_1() {
return new Promise(function(resolve, reject) {
let xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if(this.readyState == 4) {
if(this.status == 200)
resolve(this.responseText);
else
reject('Call 1 Failed');
}
};
xhttp.open("GET", "ajax-1.php");
xhttp.send();
});
...点击查看剩余70%
by thinkfuture
我知道答案，我要回答
私活外包
