Ajax解决跨域获取数据

$(function(){
   //Ajax获取远程数据1
    $.ajax({
        type:'GET',
        url:'http://www.vivian.cs.php?callback=?',
        dataType:'json',
        success:function(response,status,xhr){
            alert(response.vivian);
        }
    })
    //Ajax获取远程数据2
   $.ajax({
        type:'GET',
        url:'http://www.vivian.cs.php',
        dataType:'jsonp',
        success:function(response,status,xhr){
            alert(response.vivian);
        }
    })

   jsonp效果即等同于callback

})