主题：[求助]替换数字中的错误小数点

Dim str As String = "你好。29844。9406% Foxtable。44。97"

For i As Integer = 1 to str.length - 1

    If str.Chars(i) = "。" And IsNumeric(str.Chars(i-1)) Then

        msgbox("找到了！是第" & i+1 & "个字符" )

        str = str.remove(i,1).insert(i,".")

    End If

Next

Output.Show(str)