vardoExe=function(a,callback){setTimeout(function(){console.log(a)if(callback)callback},100*Math.random())}varaTest=function(num){for(vari=0;i
js同步異步問題，怎么調(diào)用帶callback函數(shù)的時候改成同步
海綿寶寶撒
2019-05-25 13:43:43
