vb.net解决：编一个程序，定义一个字符串变量，输入字符串，然后再输入一个字符，在字符串中查找该字符出现

Question

求解啊

Answer 1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a, b As String, c As Integer
a = InputBox("input a string", , "abcdefg")
b = InputBox("find string", , "g")
c = a.IndexOf(b) + 1
MsgBox(c)
End Sub

Answer 2

用函数Instr(StringA,StringB)来实现
例如：
StringA=“7654321”
StringB=“2”
Instr(StringA,StringB)=6