subject_42107.htm

一些关于vc的问答

<p>
序号：42107 发表者：liveyou 发表日期：2003-05-31 20:45:05
<br>主题：请教一个算法.
<br>内容：请教:在50个数中,随机抽取5个数的语句,怎么写//
<br><a href="javascript:history.go(-1)">返回上页</a><br><a href=http://www.copathway.com/cndevforum/>访问论坛</a></p>
<hr size=1>
<blockquote><p>
回复者：liveyou 回复日期：2003-05-31 20:55:34
<br>内容：快来帮帮我呀各位...<BR><BR><BR>还有什么地方,有C 的源代码下载呀...我想要纸牌游戏的源代码.
<br>
<a href="javascript:history.go(-1)">返回上页</a><br><a href=http://www.copathway.com/cndevforum/>访问论坛</a></p></blockquote>
<hr size=1>
<blockquote><p>
<font color=red>答案被接受</font><br>回复者：试一试 回复日期：2003-05-31 21:53:23
<br>内容：&nbsp;&nbsp;&nbsp;&nbsp;//昨晚刚在这里贴了一贴，你又来?<BR>&nbsp;&nbsp;&nbsp;&nbsp;//不过看你那么急，顺手再贴一个吧<BR><BR>//按F1得到的<BR><BR>Example<BR>/* RAND.C: This program seeds the random-number generator<BR> * with the time, then displays 10 random integers.<BR> */<BR><BR>#include &lt;stdlib.h&gt;<BR>#include &lt;stdio.h&gt;<BR>#include &lt;time.h&gt;<BR><BR>void main( void )<BR>{<BR>&nbsp;&nbsp; int i;<BR><BR>&nbsp;&nbsp; /* Seed the random-number generator with current time so that<BR>&nbsp;&nbsp;&nbsp;&nbsp;* the numbers will be different every time we run.<BR>&nbsp;&nbsp;&nbsp;&nbsp;*/<BR>&nbsp;&nbsp; srand( (unsigned)time( NULL ) );<BR><BR>&nbsp;&nbsp; /* Display 10 numbers. */<BR>&nbsp;&nbsp; for( i = 0;&nbsp;&nbsp; i &lt; 10;i++ )<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf( "&nbsp;&nbsp;%6d\n", rand() );<BR>}<BR><BR>Output<BR>&nbsp;&nbsp;&nbsp;&nbsp;6929<BR>&nbsp;&nbsp;&nbsp;&nbsp;8026<BR>&nbsp;&nbsp; 21987<BR>&nbsp;&nbsp; 30734<BR>&nbsp;&nbsp; 20587<BR>&nbsp;&nbsp;&nbsp;&nbsp;6699<BR>&nbsp;&nbsp; 22034<BR>&nbsp;&nbsp; 25051<BR>&nbsp;&nbsp;&nbsp;&nbsp;7988<BR>&nbsp;&nbsp; 10104<BR><BR>//下面才是你想要的<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;int numSrc[50];//假定数据放在这里<BR>&nbsp;&nbsp;&nbsp;&nbsp;int numDst[5];//假定你要把数据放在这里<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;int iFound=0;//已经找到的个数<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;while(iFound++&lt;5)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;srand( (unsigned)time( NULL ) );<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int iRand = rand();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iRand %= 49;//将随机数限制在0-49以内<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;numDst[iFound] = numSrc[iRand] //就是你想要的<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
<br>
<a href="javascript:history.go(-1)">返回上页</a><br><a href=http://www.copathway.com/cndevforum/>访问论坛</a></p></blockquote>