输出小于n的素数，每行10个代码,CSharp代码库,德仔网

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【CSharp】输出小于n的素数，每行10个
作者:Dezai.CN / 发布于2011/7/8/ 628
<div><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System;
</span><span style="color: rgb(0,0,255)">namespace</span><span style="color: rgb(0,0,0)"> Homework
{
 </span><span style="color: rgb(0,0,255)">class</span><span style="color: rgb(0,0,0)"> Program
 {
 </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> Main(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] args)
 {
 Console.Write(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">请输入n:</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> n </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Convert.ToInt32(Console.ReadLine());
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> k </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> m </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)">; m </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> n; m</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (isPrime(m))
 {
 Console.Write(m </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">,</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 k </span><span style="color: rgb(0,0,0)">+=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (k </span><span style="color: rgb(0,0,0)">%</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">10</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">==</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">)
 {
Console.Write(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">\r\n</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 }
 }
 }
 Console.ReadLine();
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">判断某个数是否为素数</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">bool</span><span style="color: rgb(0,0,0)"> isPrime(</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> num)
 {
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> num </span><span style="color: rgb(0,0,0)">/</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)"> ; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (num </span><span style="color: rgb(0,0,0)">%</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">==</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;
 }
 }
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 }
 }
}
</span></div>
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