为什么会出现警告？？_html/css_WEB-ITnose

本帖最后由 yczhaoliao 于 2012-09-25 19:36:52 编辑

var xmlhttp;
function $(id){
return document.getElementById(id);
}
function createXmlHttpRequest(){
try {
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e1) {
try {
xmlhttp = new XMLHttpRequest();
if(xmlhttp.overrideMimeType){
xmlhttp.overrideMimeType("text/xml");
}
} catch (e2) {
}
}
}
}
function update(bid,price){
createXmlHttpRequest();
var count = $("count").value;
var url = "Modify?bid="+bid+"&count="+count+"&price="+price;

xmlhttp.open("post", url, true);
xmlhttp.onreadystatechange = function(){
if(xmlhttp.readyState == 4){
if(xmlhttp.status == 200){
var str = xmlhttp.responseText;
var price = $("price").value;
var t_price = count*price;
total.innerHTML = ""+t_price+"";
}
}
} 这个地方会出现警告（就旁边这个中括号）。不知道为什么？
xmlhttp.send(null);
}

回复讨论(解决方案)

这样不报错了。

var xmlhttp;function $(id){	return document.getElementById(id);}function createXmlHttpRequest(){	try {		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");	} catch (e) {		try {			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");		} catch (e1) {			try {				xmlhttp = new XMLHttpRequest();				if(xmlhttp.overrideMimeType){					xmlhttp.overrideMimeType("text/xml");				}			} catch (e2) {			}		}	}}function update(bid,price){	createXmlHttpRequest();	var count = $("count").value;	var url = "Modify?bid="+bid+"&count="+count+"&price="+price;	xmlhttp.open("post", url, true);	xmlhttp.onreadystatechange = function(){		if(xmlhttp.readyState == 4){			if(xmlhttp.status == 200){				var str = xmlhttp.responseText;				var price = $("price").value;				var t_price = count*price;				total.innerHTML = ""+t_price+"";			}		}	}	xmlhttp.send(null);}

楼主先把格式整理一下吧，这样方便别人阅读，也方便自己找错