简单的实现九九乘法表

工作之余,想起来最开始学习编程的时候,写的九九乘法表,突然兴起,写了一份,记录了下载

js版本:

//html代码

<div id="chengfa">
                    
</div>


//js代码
<script type="text/javascript">
    $(document).ready(function(){ 
        var num = 9;
        var string
        for(var i = 1; i <= num; i++){
            for(var j = 1; j <= i; j++){
                var jieguo = i * j;
                string += "<td style='border:1px solid #000000;'>"+j+ "X" +i+"="+jieguo+ "&nbsp;&nbsp;&nbsp;&nbsp;";
            }
            string  ="<tr>"+ string + "</tr>";
        }
        document.getElementById("chengfa").innerHTML = "<table>" + string +"</table>";
    });
</script>

效果图

 PHP版本:

public function chengfa()
{
    $num = 9;
    $i = 1;
    $j = 1;
    for ($i=1; $i < $num; $i++) { 
       for ($j=1; $j < $i; $j++) { 
           $jieguo = $i * $j;
           $string .= "<td style='border:1px solid #000000;'>".$j. "X" .$i."=".$jieguo. "&nbsp;&nbsp;&nbsp;&nbsp;";
       }
       $string = "<tr>". $string . "<tr>";
    }
    $string1 = "<table>" . $string ."</table>";
    echo $string1;
}    

效果图

 本质都是for循环遍历,然后包装上td和tr标签