C# written to the database table into Excel, you can choose the workbook, write...

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C#写的导入Excel表到数据库，可以选择工作簿，自己写的还不完善，有用的朋友可以借鉴一下，把完善传上来-C# written to the database table into Excel, you can choose the workbook, write their own is not perfect, can be useful to learn from some friends, to improve the Chuan-up