function wait(i){
return new Promise((resolve)=>{
setTimeout(()=>{
console.log(i)
resolve(i)
},2000)
})
}
async function waitAsync(){
for(var index=0;index<10;index++){
await wait(index);
}
}
waitAsync()
for循环过1秒打印一个index值代码
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转载自blog.csdn.net/qq_26889291/article/details/112617764
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