1、1,如图所示
2、2,或者直接复制以下代码到记事本,然后将扩展名改为html,用浏览器运行即可。<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>1--100奇数和</title> <script> var n=1; var m=0; while(n<=100){ m=m+n; n=n+2; }document.write(m) </script> </head> <body> </body></html>