如何修剪文本文件的前3个字符并保存 [英] How do I trim the first 3 characters of a text file and save

问题描述

我有文本文件XX_TRCSAB_123456.txt我想将文件重命名为TRCSAB_123456.txt



你能指导我如何在C sharp

I have the Text file XX_TRCSAB_123456.txt I want to Rename the file as TRCSAB_123456.txt

Can you guide me how to achieve this in C sharp

推荐答案

File.Move



https://msdn.microsoft.com/en-us/ library / system.io.file.move（v = vs.110）.aspx [ ^ ]

尝试

string oldNameFullPath = "XX_TRCSAB_123456.txt";
var index = oldNameFullPath.indexOf('_');
var newNameFullPath = oldNameFullPath.substring(index, oldNameFullPath.Length - index); 
System.IO.File.Move(oldNameFullPath, newNameFullPath);

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