描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
# Speaker 1: [4.80s - 6.24s]
。夫子对此有专业解读
"So, I started just Googling bricks and it wasn't too many searches [before] I found the Brick Industry Association," says Squire.。业内人士推荐旺商聊官方下载作为进阶阅读
Checking out packages... done，详情可参考91视频