帮我写一段请求google代码

var request = new XMLHttpRequest(); request.open('GET', 'https://www.google.com', true); request.onload = function() { if (request.status >= 200 && request.status < 400) { // Success! var data = request.responseText; } else { // We reached our target server, but it returned an error } }; request.onerror = function() { // There was a connection error of some sort }; request.send();