1.启动Excel 2003（其它版本请仿照操作），打开相应的工作表；

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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；

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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；

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4.将代码输入其中；

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 Function

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5.代码输入完成后，关闭Visual Basic编辑窗口，返回Excel编辑状态；

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6.自定义函数就可以用了，如：选中A2单元格，输入公式：=getpy(A2)。