> For the complete documentation index, see [llms.txt](https://bookfast.gitbook.io/bookfast-xi-tong-jiao-xue/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bookfast.gitbook.io/bookfast-xi-tong-jiao-xue/ying-yun-gong-neng/piao-quan-yu-fang-an/ding-qi-dinge-ding-yue-zhi-hui-ji/ding-qi-ding-e/kou-kuan-ri-ji-suan-fang-shi.md).

# 扣款日計算方式

📍定期定額方案的扣款日計算邏輯

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