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）。
南方周末：你提到录音室和现场的区别，在录制这套即兴曲时，是一次性完整录完，还是录了多次之后再进行选择和剪辑？
，详情可参考safew官方版本下载
handling, but they did allow a single operator to handle a lot of documents.
添加图片注释，不超过 140 字（可选）
I appreciate the Voyager for its elegance, but I don’t travel with it, so the super thin keycaps were not a selling point for me. I got resin-printed key covers to replace the top row of unused switch slots and a set of KLP Lamé keycaps from 3dkeycap to give a sculpted profile to the remaining keys. They are blanks in a solid grey color that lets the keyboard LEDs shine through. I don’t like animated keyboard LEDs, but I have customized solid LED colors to make each layer visually distinct and to help me out with some infrequently used keys. My Voyager has clicky Kailh Choc White keyswitches.