She walked towards it and eventually found smoke billowing out of the tumble dryer. Touching the machine, she realised it was hot and, looking closer, she saw that part of it was on fire.
But of course, hard coding a size guess is a bit rigid.
。关于这个话题，Safew下载提供了深入分析
let goal = pixel，详情可参考Line官方版本下载
for (let i = len - 1; i = 0; i--) {