subject_21227.htm

一些关于vc的问答

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序号：21227 发表者：萧佬 发表日期：2002-11-15 08:58:45
<br>主题：到底怎么样才 能用lib阿
<br>内容：rt,<BR>在project-&gt;setting-&gt;link-&gt;object/library modules加*.LIB好象没有什么用。<BR>而这个lib也没有什么.h文件。到底怎么样才 能用 哦 ！大家告诉我。
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<font color=red>答案被接受</font><br>回复者：崔明亮 回复日期：2002-11-15 09:14:04
<br>内容：#pragma comment(lib, "*.lib")
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回复者：萧佬 回复日期：2002-11-15 09:27:48
<br>内容：mymath.lib<BR><BR>mymath.h<BR>#ifndef _MYMATH_H<BR>#define _MYMATH_H<BR>extern int Summary(int n);<BR>extern int Factorial(int n);<BR>#endif<BR>mymath.c<BR>#include "mymath.h"<BR>int Summary(int n)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;int sum=0;<BR>&nbsp;&nbsp;&nbsp;&nbsp;int i;<BR>&nbsp;&nbsp;&nbsp;&nbsp;for(i=1;i&lt;=n;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;sum+=i;<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;return sum;<BR>}<BR><BR>int&nbsp;&nbsp;Factorial(int n)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;int Fact=1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;int i;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;for(i=1;i&lt;=n;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Fact=Fact*i;<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;return Fact;<BR>}<BR>调用是这样写的<BR>...#pragma comment(lib, "mymath.lib")<BR>...<BR>void CTest2Dlg::OnOK() <BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;// TODO: Add extra validation here<BR>&nbsp;&nbsp;&nbsp;&nbsp;int nSum= 10 ;<BR>&nbsp;&nbsp;&nbsp;&nbsp;nSum =Summary(nSum);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CString sResult;<BR>&nbsp;&nbsp;&nbsp;&nbsp;sResult.Format("Sum(10)=%d",nSum);<BR>&nbsp;&nbsp;&nbsp;&nbsp;AfxMessageBox(sResult);<BR>&nbsp;&nbsp;&nbsp;&nbsp;//CDialog::OnOK();<BR>}<BR>报错error C2065: 'Summary' : undeclared identifier
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回复者：萧佬 回复日期：2002-11-15 09:28:59
<br>内容：就是用了#pragma comment(lib, "mymath.lib")的阿 。
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