EXCEL获取汉字短语首字母

Function pinyin(p As String) As String
    Dim i As Integer
    i = Asc(p)
    Select Case i
        Case -20319 To -20284: pinyin = "A"
        Case -20283 To -19776: pinyin = "B"
        Case -19775 To -19219: pinyin = "C"
        Case -19218 To -18711: pinyin = "D"
        Case -18710 To -18527: pinyin = "E"
        Case -18526 To -18240: pinyin = "F"
        Case -18239 To -17923: pinyin = "G"
        Case -17922 To -17418: pinyin = "H"
        Case -17417 To -16475: pinyin = "J"
        Case -16474 To -16213: pinyin = "K"
        Case -16212 To -15641: pinyin = "L"
        Case -15640 To -15166: pinyin = "M"
        Case -15165 To -14923: pinyin = "N"
        Case -14922 To -14915: pinyin = "O"
        Case -14914 To -14631: pinyin = "P"
        Case -14630 To -14150: pinyin = "Q"
        Case -14149 To -14091: pinyin = "R"
        Case -14090 To -13319: pinyin = "S"
        Case -13318 To -12839: pinyin = "T"
        Case -12838 To -12557: pinyin = "W"
        Case -12556 To -11848: pinyin = "X"
        Case -11847 To -11056: pinyin = "Y"
        Case -11055 To -2050: pinyin = "Z"
        Case Else: pinyin = p
    End Select
End Function

Function getpy(str As String) As String
    Dim i As Integer
    getpy = ""
    For i = 1 To Len(str)
        getpy = getpy & pinyin(Mid(str, i, 1))
    Next i
End Function