functionwait(){constp=()=>({value:newPromise(resolve=>setTimeout(()=>resolve(),3000))})letstate={next:()=>{state.next=programPartreturnp()}}functionprogramPart(){console.log('unlocked1')state.next=programPart2returnp()}functionprogramPart2(){console.log('unlocked2')console.log('it\'ssync!!')return{value:void0}}returnstate}这个函数该如何调用?
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芜湖不芜
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varstate=wait()state.next().value.then(()=>state.next().value).then(()=>state.next().value).then(()=>console.log(state.next()))
![?](http://img1.sycdn.imooc.com/545868cd00013bbb02200220-100-100.jpg)
手掌心
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可以使用async函数来实现视觉上的同步调用。async是Generator函数的语法糖。constfn=asyncfunction(){letstate=wait();awaitstate.next().value;awaitstate.next().value;returnstate.next().value;}fn()
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