舉個例子：
const promise = new Promise((resolve, reject) => { console.log(1) resolve() console.log(2) }) promise.then(() => { console.log(3) }) console.log(4)
Chrome運行：
執行結果是：1-2-4-3.
promise構造函數是同步執行的，then方法是異步執行的.
再來個例子：
const promise = new Promise((resolve, reject) => { console.log(1); resolve(5); console.log(2); }).then(val => { console.log(val); }); promise.then(() => { console.log(3); }); console.log(4); setTimeout(function() { console.log(6); });
添加注釋：
Chrome運行：
執行結果: 1-2-4-5-3-6.
,更多精彩资讯请关注tft每日頭條，我们将持续为您更新最新资讯!
zpostcode 
Recruit 
weather 
mreligion 
Yellowpages 
sport 
constellation 
shopping 
name 
game 
directory 
literature 
Word 
tour 
furnish 
Lottery 
tftnews 
lyrics 
News 
digital 
car 
dir 
Edu 
Finance 
