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          <TD width="90%"><FONT face="Verdana, Arial, Helvetica" 
            size=4><B>結(jié)束語</B></FONT></TD>
          <TD align=right width=200><FONT face="Verdana, Arial, Helvetica" 
            size=1><NOBR>第 16 頁（共16 
      頁）</NOBR></FONT></TD></TR></TBODY></TABLE><BR><BR></P><FONT 
      face="Verdana, Arial, Helvetica" size=2>
      <P>從 Java 調(diào)用 C 或 C++ 本機代碼（雖然不簡單）是 Java 平臺中一種良好集成的功能。雖然 JNI 支持 C 和 C++，但 
      C++ 接口更清晰一些并且通常比 C 接口更可取。</P>
      <P>正如您已經(jīng)看到的，調(diào)用 C 或 C++ 
      本機代碼需要賦予函數(shù)特殊的名稱，并創(chuàng)建共享庫文件。當利用現(xiàn)有代碼庫時，更改代碼通常是不可取的。要避免這一點，在 C++ 
      中，通常創(chuàng)建<I>代理代碼</I>或代理類，它們有專門的 JNI 
      所需的命名函數(shù)。然后，這些函數(shù)可以調(diào)用底層庫函數(shù)，這些庫函數(shù)的說明和實現(xiàn)保持不變。</P><BR></FONT></TD></TR></TBODY></TABLE>
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