document.getElementById("search").onclick = function() {
var request = new XMLHttpRequest();
request.open("GET", "server.php?number=" + document.getElementById("keyword").value);
request.send();
request.onreadystatechange = function() {
if (request.readyState===4) {
if (request.status===200) {
document.getElementById("searchResult").innerHTML = request.responseText;
} else {
alert("发生错误:" + request.status);
}
}
}
}
这到底哪里出错了,send()这个方法里面不是可以不用写东西的吗?放null进去还是报错