复制代码 代码如下:

function CheckStatus(url)
        {
            XMLHTTP = new ActiveXObject(\"Microsoft.XMLHTTP\")
            XMLHTTP.open(\"HEAD\",url,false)
            XMLHTTP.send()
            return XMLHTTP.status==200
        }

        function NetPing()
        {
              return CheckStatus(\"http://www.phpstudy.net\");
        }

复制代码 代码如下:

function NetPing() {
    $.ajax({
        type: \"GET\",
        cache: false,
        url: \"http://www.phpstudy.net\",
        data: \"\",
        success: function() {
            Done(1);
        },
        error: function() {
            Done(0);
        }
    });