PHP写杨辉三角实例代码_PHP教程

<br><!--?php <BR-->//杨辉三角 <br>for ($i=6;$i >= 0;$i--) <br>{ <br>for ($j=$i;$j <= 6;$j++) <br>{ <br>if ($j <= 6-1) <br>{ <br>echo "<b>a</b>"; <br>}else <br>{ <br>echo "<br>"; <br>} <br>} <br>} <br>?> <br> <br>PHP打印杨辉三角自定义 <br><span style="CURSOR: pointer" onclick="doCopy('code20111')"><u></u></span> 代码如下:<pre class="brush:php;toolbar:false layui-box layui-code-view layui-code-notepad"><ol class="layui-code-ol"><li><br> <br><!--?php <BR-->function yanghui($line) <br>{ <br>echo ""; <br>for($i=1;$i<=$line;$i++) <br>{ <br>echo ""; <br>for($j=1;$j<=$i;$j++) <br>{ <br>$yh[$i][1]=1; <br>if ($i==$j) $yh[$i][$j]=1; <br>else $yh[$i][$j]=$yh[$i-1][$j-1]+$yh[$i-1][$j]; <br>echo ""; <br>} <br>echo ""; <br>} <br>echo "<table><tbody><tr><td width="40"> <font color="#0000FF">"; <br>echo $yh[$i][$j]; <br>echo "</font> </td></tr></tbody></table>"; <br>} <br>if($_POST['submit']) yanghui($_POST['givenlines']); <br>?> <br> <br></li><li><p></p></li><li><p align="left"><span id="url" itemprop="url">http://www.bkjia.com/PHPjc/323807.html</span><span id="indexUrl" itemprop="indexUrl">www.bkjia.com</span><span id="isOriginal" itemprop="isOriginal">true</span><span id="isBasedOnUrl" itemprop="isBasedOnUrl">http://www.bkjia.com/PHPjc/323807.html</span><span id="genre" itemprop="genre">TechArticle</span><span id="description" itemprop="description"> 代码如下:</span></p><pre class="brush:php;toolbar:false layui-box layui-code-view layui-code-notepad"><ol class="layui-code-ol"><li>?php //杨辉三角 for ($i=6;$i = 0;$i--) { for ($j=$i;$j = 6;$j++) { if ($j = 6-1) { echo "ba/b"; }else { echo "br /"; } } } ? PHP打印杨辉三角自定...<p></p></li><li>                    </li></ol></pre></li></ol></pre>