ar xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if( xhr.readyState == 4){
if( xhr.status >= 200 && xhr.status < 300 || xhr.status == 304){
info.innerHTML = xhr.responseText;
}
}
};
xhr.open("get","test.txt",true);
xhr.send(null);
时间: 2024-10-13 22:19:22