基于 holiday-cn 的**节假日 API
其中 date 为可选参数，格式为 yyyy-MM-dd，不传则默认为当天
GET /?date=2024-02-04- 提交 Issues
本项目使用 GPL-3.0 协议开放源代码
holiday-api - China Holiday API
Copyright (C) 2024 ZhenXin
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