<script type="text/javascript">
$('#tab-1').click(function(){
var data = Ajaxs("test.php");
alert(data);
});
function Ajaxs($url,$urlType="get",$data=''){
$.ajax({
type: $urlType,
url: $url,
data:$data,
beforeSend: function(){
},
success: function(data){
alert(data);
return data;
},
error: function(){
alert('请求失败');
}
});
}
</script>为什么 success :alert(data)可以将ajax返回的结果打印出来,而return data 会返回 undefined
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