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<title>把十六进制转换成十进制                            </title>
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      <div align="center" class="btitle">把十六进制转换成十进制                            <br>
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      <div align="center"><strong>Odimar Tomazeli                                   </strong></div>
       
      <b><br>
      　摘　要</b>：在delphi中把十六进制转换成十进制                  <br>
      <b>　关键字</b>：十六进制                                           <br>
      <b>　类　别</b>：Object Pascal                                      
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      <span class="content"><br>function HexaToDecimal(Hexa:string):longint; <br>const<br>&nbsp;&nbsp;&nbsp;ValoresHexa : array['A'..'F'] of integer = (10,11,12,13,14,15); <br>var<br>&nbsp;&nbsp;&nbsp;nDecimal : longint;<br>&nbsp;&nbsp;&nbsp;nIndex : byte; <br>begin<br>&nbsp;&nbsp;&nbsp;nDecimal := 0;<br>&nbsp;&nbsp;&nbsp;Hexa := Uppercase(Hexa);<br>&nbsp;&nbsp;&nbsp;for nIndex := Length(Hexa) downto 1 do<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if Hexa[nIndex] in ['0'..'9']<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;then nDecimal := nDecimal + StrToInt(Hexa[nIndex]) *<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Trunc(Exp((Length(Hexa)-nIndex)*ln(16)))<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else nDecimal := nDecimal + ValoresHexa[Hexa[nIndex]] *<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Trunc(Exp((Length(Hexa)-nIndex)*ln(16)));<br>&nbsp;&nbsp;&nbsp;HexaToDecimal := nDecimal; <br>end;</span> 
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