龙猫头像自取

var ajax = new XMLHttpRequest();
ajax.open('post','https://juejin.cn/web/user/update/user_info/',true);
ajax.setRequestHeader('content-type','application/x-www-form-urlencoded');
ajax.send("aid=2608&avatar=https://p9-passport.byteacctimg.com/img/user-avatar/6847c603fc998e125533f0f4bf8f7cff~180x180.awebp");
ajax.onreadystatechange = function (){
    if(ajax.readyState==4&&ajax.status==200){
        var c = ajax.responseText;
        console.log(c)
    }
}