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<title>Document</title>
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<script>
new Promise(
function (resolve, reject) {
$.ajax({
url: "回调.txt",
success: function (res) {
resolve(res)
},
error: function (err) {
reject(err)
}
})
}
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.then(data => {
console.log('then1:', data)
return '地球'
}, error => {
console.log('catch1:', error)
})
.then(data => {
console.log('then2:', data)
return new Promise(resolve => {
$.ajax({
url: './huidiao.txt?name=' + data,
success: function (res) {
console.log('第二个请求拿到的洲的数据', res)
resolve('亚洲')
},
error: function (err) {
}
})
})
})
.then(data => {
console.log('then3:', data)
return new Promise(resolve => {
$.ajax({
url: './huidiao3.txt?name=' + data,
success: function (res) {
console.log('第三个请求拿到最终的数据', res)
},
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}
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