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  • 用javascript的for循环,打印九九乘法表

    用javascript的for循环,打印九九乘法表

    javascript:

    <!DOCTYPE html>

    <html>

       <head>

           <meta charset="UTF-8">

           <title>用for循环打印九九乘法表</title>

           <script type="text/javascript">

              for(var row=1; row<=9; row++){           

                  for(var col=1; col<=row; col++){

                     document.write(col+'*'+row+'='+col*row +'&nbsp;&nbsp;&nbsp');

                  }

                  document.write("<br/>");

              }

           </script>

       </head>

       <body>

       </body>

    </html>

     

    运行结果:

    1 * 1 = 1

    1 * 2 = 2       2 * 2 = 4

    1 * 3 = 3       2 * 3 = 6       3 * 3 = 9

    1 * 4 = 4       2 * 4 = 8       3 * 4 = 12      4 * 4 = 16

    1 * 5 = 5       2 * 5 = 10      3 * 5 = 15      4 * 5 = 20      5 * 5 = 25

    1 * 6 = 6       2 * 6 = 12      3 * 6 = 18      4 * 6 = 24      5 * 6 = 30      6 * 6 = 36

    1 * 7 = 7       2 * 7 = 14      3 * 7 = 21      4 * 7 = 28      5 * 7 = 35      6 * 7 = 42      7 * 7 = 49

    1 * 8 = 8       2 * 8 = 16      3 * 8 = 24      4 * 8 = 32      5 * 8 = 40      6 * 8 = 48      7 * 8 = 56      8 * 8 = 64

    1 * 9 = 9       2 * 9 = 18      3 * 9 = 27      4 * 9 = 36      5 * 9 = 45      6 * 9 = 54      7 * 9 = 63      8 * 9 = 72      9 * 9 = 81

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  • 原文地址:https://www.cnblogs.com/tylerwu/p/12712699.html
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