电子表格中的数值相加小数点后的尾数总比实际相加值少了一点解决方法

为什么电子表格中的数值相加小数点后的尾数总比实际相加值少了一点
用VBA自定义一个大写金额转换的函数，在公式中输入此函数名就可以了。

具体方法：按Alt+F11 ，在VBA编辑器菜单中点插入→模块，将下面的函数复制到插入的模块当中，
'===================================================================
Function CChinese(StrEng As String) As String
'将阿拉伯数字转成中文字的程式例如：1560890 转成"壹佰伍拾陆万零捌佰玖拾"。

'程式限制为不可输入超过16个数字
If Not IsNumeric(StrEng) Or StrEng Like "*.*" Or StrEng Like "*-*" Then
If Trim(StrEng) <> "" Then MsgBox "无效的数字"
CChinese = "": Exit Function
End If
Dim intLen As Integer, intCounter As Integer
Dim strCh As String, strTempCh As String
Dim strSeqCh1 As String, strSeqCh2 As String
Dim strEng2Ch As String
strEng2Ch = "零壹贰叁肆伍陆柒捌玖"
strSeqCh1 = " 拾佰仟拾佰仟拾佰仟拾佰仟"
strSeqCh2 = " 万亿兆"
StrEng = CStr(CDec(StrEng))
intLen = Len(StrEng)
For intCounter = 1 To intLen
strTempCh = Mid(strEng2Ch, Val(Mid(StrEng, intCounter, 1)) + 1, 1)
If strTempCh = "零" And intLen <> 1 Then
If Mid(StrEng, intCounter + 1, 1) = "0" Or (intLen - intCounter + 1) Mod 4 = 1 Then
strTempCh = ""
End If
Else
strTempCh = strTempCh & Trim(Mid(strSeqCh1, intLen - intCounter + 1, 1))
End If
If (intLen - intCounter + 1) Mod 4 = 1 Then
strTempCh = strTempCh & Mid(strSeqCh2, (intLen - intCounter + 1) \ 4 + 1, 1)
If intCounter > 3 Then
If Mid(StrEng, intCounter - 3, 4) = "0000" Then strTempCh = Left(strTempCh, Len(strTempCh) - 1) End If
End If
strCh = strCh & Trim(strTempCh)
Next
CChinese = strCh
End Function
'===================================================================
'===================================================================
Function daxie(money As String) As String
'实现货币金额中文大写转换的程序
'程式限制为不可输入超过16个数字
Dim x As String, y As String
Const zimu = ".sbqwsbqysbqwsbq" '定义位置代码
Const letter = "0123456789sbqwy.zjf" '定义汉字缩写
Const upcase = "零壹贰叁肆伍陆柒捌玖拾佰仟万亿圆整角分" '定义大写汉字
If CDbl(money) >= 1E+16 Then daxie = "#VALUE!": Exit Function '只能转换一亿亿元以下数目的货币！
x = Format(money, "0.00") '格式化货币
y = ""
For i = 1 To Len(x) - 3
y = y & Mid(x, i, 1) & Mid(zimu, Len(x) - 2 - i, 1)
Next
If Right(x, 3) = ".00" Then
y = y & "z" '***元整。