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V.B.Net C#中的等效物? [已关闭]
原文:VB.Net Equivalent in C#? [closed]

我在VB. VB. Net 中校验它上的文本框, s keyPress 事件,如果 InStr ("0123456789ABCDEFGHIJKMNOPQRSTUVWXZabcdefghijklmopqrstvwxyz"!\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

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