vb.net 查找字符串中子字符串第一次出现的位置
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Find position of first occurrence of a substring in a string
提问by Marcus Tik
I wan't a method with which to find a string within another string. It should return the position of the first occurrence of the substring. (In VB 2008 !)
我不需要在另一个字符串中查找字符串的方法。它应该返回子字符串第一次出现的位置。（在 VB 2008 中！）
回答by Matthew Flaschen
回答by Daniel Wedlund
I think you are looking for InStr function, see: InStr at msdn
我认为您正在寻找 InStr 函数，请参阅：msdn 上的 InStr
回答by Dale E. Moore
position = instr([stringField] & " ", " ")
position = instr([stringField] & " ", " ")
Looking for the first blank in what might be an empty string named [stringField]. The ' & " "' avoids an error situation where there are no blanks in [stringField].
在可能是名为 [stringField] 的空字符串中寻找第一个空格。' & " "' 避免了 [stringField] 中没有空格的错误情况。
