如何提取汉语拼音的首字？一般来说，有两种方法！
①函数法：利用vlookup，但有一定的局限性，效率也是问题。
②vba法：是最佳的选择，并且，仅使用几行Excel VBA代码就行，为什么这么说呢？因为Excel里利用Vlookup工作表函数和Evaluate方法可以快捷的计算出结果。
通过如下例子可以看出Excel VBA独有的优势。代码如下
Public Function MyPY(ByVal vText As Variant) As String
Application.Volatile
Dim strResult As String
Dim lStart As Long
On Error Resume Next
For lStart = 1 To Len(vText)
strResult = strResult & Application.Evaluate("VLookup(""" & Mid(vText, _
lStart, 1) & _
""", {""吖"",""A"";""八"",""B"";""嚓"",""C"";""咑"",""D"";""鵽"",""E"";""发"",""F"";""猤"",""G"";& _
""铪"",""H"";""夻"",""J"";""咔"",""K"";""垃"",""L"";""嘸"",""M"";""旀"",""N"";""噢"",""O"";&_
""妑"",""P"";""七"",""Q"";""囕"",""R"";""仨"",""S"";""他"",""T"";""屲"",""W"";""夕"",""X"";& _"
"丫"",""Y"";""帀"",""Z""},2,1)")
Next
MyPY = strResult
End Function
上文自定义函数提取的是纯汉字，但“中华人民共和国123（辽宁）”要求返回“ZHRMGHG（LN）”
“中华人民共和国1-辽宁”返回“ZHRMGHG-LN”怎么办？
关键点：
①排除A~Z a~z 0~9，就是所有字母和数字。
②判断是否为每个提取的字符是否汉字。一般判断为汉字可以利用ASC码值判断，这里我提供另一种方法。
整体代码如下：
Public Function SuperPY(ByVal vText As Variant) As String
Application.Volatile
Dim strResult As String
Dim lStart As Long
Dim sTemp As String
On Error Resume Next
For lStart = 1 To Len(vText)
sTemp = VBA.StrConv(Mid(vText, lStart, 1), vbNarrow)
If sTemp Like "[!A-Z !a-z !0-9]" Then '排除什么可以在like表达式中修改
If Len(sTemp) <> LenB(StrConv(sTemp, vbFromUnicode)) Then
strResult = strResult & Application.Evaluate("VLookup(""" & Mid(vText, _
lStart, 1) & _
""",{""吖"",""A"";""八"",""B"";""嚓"",""C"";""咑"",""D"";""鵽"",""E"";""发"",""F"";""猤"",""G"";& _
""铪"",""H"";""夻"",""J"";""咔"",""K"";""垃"",""L"";""嘸"",""M"";""旀"",""N"";""噢"",""O"";""妑"",& _
""P"";""七"",""Q"";""囕"",""R"";""仨"",""S"";""他"",""T"";""屲"",""W"";""夕"",""X"";""丫"",""Y"";""帀"",""Z""},2,1)")
Else
strResult = strResult & Mid(vText, lStart, 1)
End If
End If
Next
SuperPY = strResult
End Function