掘友等级
获得徽章 0
var p1 = new Promise(resolve => {
setTimeout(()=>{
console.log(0)
},0);
console.log(1);
resolve(2)
})
var p2 = new Promise(resolve => {
console.log(3)
resolve(p1)
})
p1.then(re=>{
console.log(re,'p1')
})
p2.then(re=>{
console.log(re,'p2')
})
谁能抱我解决这个问题么， 就是p2.then执行为什么是2，麻烦大家了
