Windows CMD substr

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By Pank on October 21, 2011 10:38 PM 0 Vote 0 Votes

這個技巧是用在 Windows CMD 批次檔中切字串使用, 純 DOS 環境不適用

C:\>echo %windir%
C:\Windows

從第一個字的位置(0)開始取2碼
C:\>echo %windir:~0,2%
C:

從第3位置開始取4碼
C:\>echo %windir:~3,4%
Wind

從第3位置開始取到結尾
C:\>echo %windir:~3%
Windows

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