jquery中Ajax使用Promise指定成功回调函数

<!DOCTYPE html>

<html >

<head>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<meta http-equiv="X-UA-Compatible" content="ie=edge">

<title>Document</title>

</head>

<body>

<input type="button" value="获取数据" >

<script src="./node_modules/jquery/dist/jquery.min.js"></script>

<script>

$(function () {

$('#btn').on('click', function () {

$.ajax({

url: './data.json',

type: 'get',

dataType: 'json'

})

.then(function (data) {

console.log(data)

})

})

});

</script>

</body>

</html>