js怎么把数字转化为字母（A,B.....AA,AB,..）

function createcellpos( n ){
var orda = 'a'.charcodeat(0);
var ordz = 'z'.charcodeat(0);
var len = ordz - orda + 1;
var s = "";
while( n >= 0 ) {

s = string.fromcharcode(n % len + orda) + s;

n = math.floor(n / len) - 1;

}
return s;
}

createcellpos(26)//"aa"

原文：https://blog.csdn.net/weixin_42349358/article/details/80517198