function s1() {
return new Promise(function(resolve, reject) {
console.log('函数s1执行')
s2()
})
}
function s2(){
return new Promise(function(resolve, reject) {
console.log('函数s2执行')
resolve()
})
}
s1().then(function(){
console.log('函数s1的then语句')
})
这样只能执行s1和s2,s1后边的then语句怎样才能执行
小唯快跑啊
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