请问各位如何用javascript做出如下的图形？

Question

             *
          *     *       *           *    *                 * *                       * *                       * *                       * *                       * *                       * *                       * *                       *    *                 *       *           *          *     *             *

Answer 1

For example :<script type="text/javascript" >
    test() ;
    function test()
    {
       for(var i=1; i<=15; i++)
       {
   if(i==1)
   document.write("*<br>") ;
           else if(i>1&&i<=4)
           document.write("&nbsp&nbsp* *<br>") ;
   
   else if(i>4&&i<=11)
   document.write("&nbsp* *<br>") ;    else if(i>11&&i<=14)
   document.write("&nbsp&nbsp* *<br>") ;
   else
   document.write("&nbsp&nbsp*<br>") ;
       }
    }</script>