设定函数
function chiFan() {return new Promise(function(resolve, reject) {console.log("chiFan");})
}function shuiJiao() {return new Promise(function(resolve, reject) {console.log("shuiJiao");})
}function daDouDou() {return new Promise(function(resolve, reject) {console.log("daDouDou");})
}// 调用函数
chiFan().then(shuiJiao()).then(daDouDou())
复制代码
特殊场景下需要按照顺序执行,可以用的到Promise方法