?? list6.htm
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outtextxy(10,170,"press a key");<br>
getch();<br>
setfillstyle(HATCH_FILL,YELLOW);<br>
floodfill(202,100,WHITE);<br>
getch();<br>
for(k=0;k<=500;k++)<br>
{<br>
setcolor(3);<br>
for(i=0;i<=16;i++)<br>
{<br>
a=(2*PAI/16)*i+(2*PAI/180)*k;<br>
x=ceil(x0+48*cos(a));<br>
y=ceil(y0+48+sin(a)*B);<br>
setcolor(2); line(x0,y0,x,y);<br>
}<br>
for(j=1;j<=50;j++)<br>
{<br>
a=(2*PAI/16)*i+(2*PAI/180)*k-1;<br>
x=ceil(x0+48*cos(a));<br>
y=ceil(y0+48*sin(a)*B);<br>
line(x0,y0,x,y);<br>
}<br>
}<br>
restorecrtmode();<br>
}<br>
==============================================================<br>
<font color="#990000">【程序60】</font><br>
題目：畫圖，綜合例子。 <br>
1.程序分析：<br>
2.程序源代碼：<br>
#include "graphics.h"<br>
#define LEFT 0<br>
#define TOP 0<br>
#define RIGHT 639<br>
#define BOTTOM 479<br>
#define LINES 400<br>
#define MAXCOLOR 15<br>
main()<br>
{<br>
int driver,mode,error;<br>
int x1,y1;<br>
int x2,y2;<br>
int dx1,dy1,dx2,dy2,i=1;<br>
int count=0;<br>
int color=0;<br>
driver=VGA;<br>
mode=VGAHI;<br>
initgraph(&driver,&mode,"");<br>
x1=x2=y1=y2=10;<br>
dx1=dy1=2;<br>
dx2=dy2=3;<br>
while(!kbhit())<br>
{<br>
line(x1,y1,x2,y2);<br>
x1+=dx1;y1+=dy1;<br>
x2+=dx2;y2+dy2;<br>
if(x1<=LEFT||x1>=RIGHT)<br>
dx1=-dx1;<br>
if(y1<=TOP||y1>=BOTTOM)<br>
dy1=-dy1;<br>
if(x2<=LEFT||x2>=RIGHT)<br>
dx2=-dx2;<br>
if(y2<=TOP||y2>=BOTTOM)<br>
dy2=-dy2;<br>
if(++count>LINES)<br>
{<br>
setcolor(color);<br>
color=(color>=MAXCOLOR)?0:++color;<br>
}<br>
}<br>
closegraph();<br>
}</p>
<p></p>
</body>
</html>
</p>
</div>
</TD>
</TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=0 borderColorDark=#ffffff cellPadding=0 width=650
align=center bgColor=#d7ebff border=0>
<TBODY>
<TR vAlign=center align=middle bgColor=#3986EF>
<TD id=notice vAlign=center align=left colSpan=2 height=25> <font color="#ffffff"><b>[</b>來源<b>]</b>:
beck
<b>[</b>編輯<b>]</b>: <font color=ffffff>
beck
</font> <b>[</b>加入時間<b>]</b>:2002-8-11 </font>
</TR></TBODY></TABLE>
</BODY>
<br>
<br>
<table width="100%" border="0">
<tr>
<td>
<li><font color=#0772B1>上篇文章</font>：<a href="list.asp?id=207">經典c程序100例==41--50</a>
</li>
<li><font color=#0772B1>下篇文章</font>：<a href="list.asp?id=209">經典c程序100例==61--70</a>
</li>
</td>
<td align="right">
<script language = "JavaScript">
var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array("C語言教程","8","35");
subcat[1] = new Array("C技術文章","8","36");
subcat[2] = new Array("C試題庫","8","37");
subcat[3] = new Array("C程序百例","8","38");
subcat[4] = new Array("C函數庫","8","39");
subcat[5] = new Array("數據結構教程","9","40");
subcat[6] = new Array("常用算法","9","41");
subcat[7] = new Array("在線測試","8","42");
subcat[8] = new Array("linux入門級","10","43");
onecount=9;
function changelocation(locationid)
{
document.myform.Nclassid.length = 0;
var locationid=locationid;
var i;
for (i=0;i < onecount; i++)
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if (subcat[i][1] == locationid)
{
document.myform.Nclassid.options[document.myform.Nclassid.length] = new Option(subcat[i][0], subcat[i][2]);
}
}
}
</script>
<form method="post" name="myform" action="ru_query.asp">
文章搜索:
<select name="action" size="1">
<option value="title">按文章標題搜索</option>
<option value="writer">按文章來源搜索</option>
<option value="content">按文章內容搜索</option>
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<select name="classid" onChange="changelocation(document.myform.classid.options[document.myform.classid.selectedIndex].value)" size="1">
<option selected value="">請指定范圍</option>
<option value="8">C語言教室</option>
<option value="9">數據結構</option>
<option value="10">Linux初探</option>
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<select name="Nclassid">
<option selected value="">請指定范圍</option>
<option value="8">C語言教程</option>
<option value="8">C技術文章</option>
<option value="8">C試題庫</option>
<option value="8">C程序百例</option>
<option value="8">C函數庫</option>
<option value="9">數據結構教程</option>
<option value="9">常用算法</option>
<option value="8">在線測試</option>
<option value="10">linux入門級</option>
</select>
<input type="text" name="keyword" size=10 value="輸入關鍵字" maxlength="50">
<input type="submit" name="Submit" value="搜索">
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<TR>
<TD bgColor="#e6e6e6" width="50%">□- C程序百例熱點文章</TD>
<TD bgColor="#e6e6e6" width="50%">□- 相關文章</TD>
</TR>
<tr>
<td width="50%" valign=top bgColor="#FFFFFF">
1.<a href="list.asp?id=212" title="經典c程序100例==91--100" target=_top>
經典c程序100例==91--100
</a>[閱讀:<font color=red>162366</font>]<br>
2.<a href="list.asp?id=203" title="經典c程序100例==1--10" target=_top>
經典c程序100例==1--10
</a>[閱讀:<font color=red>92965</font>]<br>
3.<a href="list.asp?id=208" title="經典c程序100例==51--60" target=_top>
經典c程序100例==51--60
</a>[閱讀:<font color=red>72882</font>]<br>
4.<a href="list.asp?id=204" title="經典c程序100例==11--20 " target=_top>
經典c程序100例==11--20
</a>[閱讀:<font color=red>68461</font>]<br>
5.<a href="list.asp?id=211" title="經典c程序100例==81--90 " target=_top>
經典c程序100例==81--90
</a>[閱讀:<font color=red>63316</font>]<br>
</td>
<td width="50%" valign=top bgColor="#FFFFFF">
<a href=list.asp?id=212>經典c程序100例==91--100</a><br>
<a href=list.asp?id=211>經典c程序100例==81--90 </a><br>
<a href=list.asp?id=210>經典c程序100例==71--80</a><br>
<a href=list.asp?id=209>經典c程序100例==61--70</a><br>
<a href=list.asp?id=208>經典c程序100例==51--60</a><br>
</td>
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<table width="778" border="0" bgcolor=ffffff>
<tr bgcolor=ffffff>
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<td width="7%"> </td>
<td width="87%">
<div align="center">唯C世界|<font face="Arial, Helvetica, sans-serif" >http://wWw.VcOk.Com</font> <font face="Arial, Helvetica, sans-serif">Ver
1.00 Design By <font face="Verdana, Arial, Helvetica, sans-serif"><b><font color="#FF0000"><a href="http://www.vcok.com"><font color="#FF0009">VcOk.com</font></a></font></b></font></font></font></div>
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<div align="center"><font face="Arial, Helvetica, sans-serif">CopyRight
<font color="#FF0000">©</font> .:.:.:2002-2008 AT Tie Ling Liaoning China:.:.:.</font></div>
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<td width="7%"> </td>
<td width="87%" align=center> 遼寧省鐵嶺師專c語言研究中心 <u>楊志鋒</u> 數學系 <u>杜博</u> </td>
<td width="6%"> </td>
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