2016-12-06 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>while循环九九乘法表</title>
    <script type="text/javascript">
        var i = 1;
        
        var str = '<table width = "800" border = "1" align = "center">';
        var  sum = 0;
        while(i <= 9)
        {
            str += "<tr>";
            var j = 1;
                while(j <= i)
                {
                    sum = i * j;
                    str += "<td>" + i + "&times" + j +" =" + sum + "</td>";
                    j++;
                }
            i++;
            str += "</tr>";
        }
            str += '</table>';
        document.write(str);

//        var str = '<table align = "center" width = "900" border = "1">';
//                while(i<=9)
//                {
//                    str += '<tr>'
//                    while(j<=i)
//                    {
//                    str += '<td>&nbsp;</td>'
//                    j++;
//                    document.write(j+"<br>");
//                    }
//                    i++;
//                    str += '</tr>'
//                    document.write(i+"<br>");
//                }
//            str += '</table>';
    </script>
</head>
<body>
    
</body>
</html>

 

posted @ 2016-12-06 22:40  czbkhzh  阅读(132)  评论(1)    收藏  举报