python-InvoiceMgr. 这是一个用于管理发票信息的简单软件，可以添加、删除、更新发票信息，并且可以通过按值或按日期等方式排序发票列表。该软件还提供了一些实用功能，如通过批量导入、设置输出目录和状态来更方便地管理发票。

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.