C#中的excel中如果用cell,则速度会非常慢,特别是写入的时候 将excel做为数据库操作则失去方便性.这个源码旨在提高C#中excel处理的数据与便捷性.-C# In excel in the If cell, then the speed will be very slow, especially when writing to excel as database operations have lost the convenience. This source seeks to in