1.启动Excel 2003（其它版本请仿照操作），打开相应的工作表；
2.执行"工具 > 宏 > Visual Basic编辑器"命令（或者直接按"Alt+F11"组合键），进入Visual Basic编辑状态；
3.执行"插入 > 模块"命令，插入一个新模块。再双击插入的模块，进入模块代码编辑状态
4.将代码输入其中。代码如下：
Function pinyin(p As String) As String
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)
For i = 1 To Len(str)
getpy = getpy & pinyin(Mid(str, i, 1))
Next i
End Function5.代码输入完成后，关闭Visual Basic编辑窗口，返回Excel编辑状态；
6.自定义函数就可以用了，如：选中A2单元格，输入公式：=getpy(A2)