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+" "); 38 39 } 40 document.write("<br/>"); 41 42 } 43 44 </script> 45 </head> 46 47 <body> 48 </body> 49 50 </html>