插入一个字符:Dim a As String, b As Stringa = "IYou"b = " LOVE "a = Left(a, 1) & b & Right(a, 3)MsgBox a删除一个字符:Dim a As Stringa = "I LOVE You"a = Left(a, 4) & Right(a, 3)MsgBox a
s = i & jPrint s
s = s & j
s=i & j