jquery ajax跨域

jquery+ajax+jsonp實現跨域

JS代碼，須要引入jquery

$(function(){  
    $.ajax({  
        type:'get',  
        url : 'http://kuayu.a.com/c.php?loginuser=lee&loginpass=123456',  
        dataType : 'jsonp',  
        jsonp:"jsoncallback",  
        success  : function(data) {  
            alert("用戶名："+ data.user +" 密碼："+ data.pass);  
        },  
        error : function() {  
            alert('fail');  
        }  
    });  
});

PHP代碼

header('Content-Type:text/html;Charset=utf-8');  
if(!empty($_GET['loginuser'])){
    $arr = array(  
        "user" => $_GET['loginuser'],  
        "pass" => $_GET['loginpass'],  
        "name" => 'response'  
    );  
    echo $_GET['jsoncallback'] . "(".json_encode($arr).")";  
    die();
}