摘要:
三个异步任务, 顺序执行var step1 = function(){ var def = $.Deferred(); setTimeout(function(){ console.log('我是第一个任务'); def.resolve(); },3000) return def.promise();}var step2 = function(){ var def = $.Deferred(); setTimeout(function(){ console.log('我是第二个任务'); def.res... 阅读全文