JavaScript 代码无法跨浏览器运行

Question

var txt = http.responseText; -> 它在 Chrome 中不起作用... 我怎样才能改变这条线？

Answer 1

您应该在最后调用方法发送:

var http = new XMLHttpRequest();                
var url = "http://example.com/logScore.php";
var params = "GameID=5&User="+name+"&Score="+score+"";
http.open("GET", url+"?"+params, true);
http.onreadystatechange = function() {//whatever you want}
http.send();

不调用发送请求将不会发送。