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）。
В Финляндии предупредили об опасном шаге ЕС против России09:28
。一键获取谷歌浏览器下载对此有专业解读
When delay slots aren't enough: RPT as a stall
When I first got the Ploopy Adept trackball, I customized it using the VIA web app and used it quite happily for a while, until I realized it had so much more potential. So I got QMK running on my laptop, then got to work programming a super customized, super functional mouse with nine layers and a plethora of custom keycodes.