$.ajax({ url:‘‘, type:‘POST‘, //GET async:true, //或false,是否异步 data:{ name:‘llc‘, age:22 }, timeout:5000, //超时时间 dataType:‘json‘, //返回的数据格式:json/xml/html/script/jsonp/text beforeSend:function(xhr){ console.log(xhr) console.log(‘发送前‘) }, success:function(data,textStatus,jqXHR){ console.log(data); }, error:function(xhr,textStatus){ console.log(‘错误‘,xhr.responseText); console.log(xhr); console.log(textStatus); } })