两道标题和解答，求改进

2013-01-23

两道题目和解答，求改进初学 php ，很多都不懂，能不能指导一下这两道题目更好的解法，谢谢htmlbodytable

两道题目和解答，求改进
初学 php ，很多都不懂，能不能指导一下这两道题目更好的解法，谢谢

两道标题和解答，求改进


<html>
<body>

<table border="1" cellpadding="0" cellspacing="0">
        <tr>
                <td width=300>
                    a
                    <br />
                    <br />
                    <br />
                </td>
                <td width=300>
                    <br />
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    b
                    <br />
                    <br />
                </td>
        </tr>

        <tr>
                <td>
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    c
                    <br />
                    <br />
                    <br />
                </td>

                <td>
                    <br />
                    <br />
                    d
                </td> 
 
        </tr>
</table>


</body>
</html>

<html>
<body>
    <?php
        for ($i=8; $i>=4; $i=$i-2) {
            for ($k=8-$i; $k>0; $k--) {
                echo "&nbsp;";
            }
            for ($j=$i; $j>0; $j--) {
                echo "*";
            }
            echo "<br>";
        }
            
            echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*";
    ?>

</body>
</html>

[解决办法]
1是问html+css
2是问数列
自己斟酌
[解决办法]
第一题错
题目要求用“记事本”，也就是输出到文本文件

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两道标题和解答，求改进