打印十行星九九乘法表

 1 <!DOCTYPE html>
 2 <html>
 3 
 4     <head>
 5         <meta charset="UTF-8">
 6         <title>打印十行星案例</title>
 7         <script type="text/javascript">
 8             /*//打印三行十颗星
 9             for(var j = 1; j <= 3; j++) {
10 
11                 for(var i = 1; i <= 10; i++) {
12                 
13                  document.write("*");
14                 }
15                 document.write("<br/>");
16 
17             }
18             */
19             
20             /*//打印直角三角形
21             for(var j = 1; j <= 9; j++) {
22 
23                 for(var i = 1; i<=j; i++) {
24                 
25                  document.write("*");
26                 }
27                 document.write("<br/>");
28 
29             }
30             */
31             
32             //打印九九乘法表
33             for(var j = 1; j <= 9; j++) {
34 
35                 for(var i = 1; i <=j; i++) {
36                 
37                  document.write(i+"*"+j+"="+j*i+"&nbsp;&nbsp;&nbsp;");
38                  
39                 }
40                 document.write("<br/>");
41 
42             }
43             
44         </script>
45     </head>
46 
47     <body>
48     </body>
49 
50 </html>