This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.
status有五种：
1, 0 000 未开始
2, 1 001 开始未完成
3, 3 011 开始已完成未结束
4, 5 101 开始未完成已结束
5, 7 111 开始已完成已结束
，，，其余无效
