var a = [1,2,4,32,128];var b = [];for(var i=0;i<a.length;i++){var index = Math.log(a[i])/Math.log(2);b.push(index);}//b = [0,1,2,5,7];
跟Math.pow 相反的函数
最新推荐文章于 2025-06-20 20:01:08 发布
var a = [1,2,4,32,128];var b = [];for(var i=0;i<a.length;i++){var index = Math.log(a[i])/Math.log(2);b.push(index);}//b = [0,1,2,5,7];