<!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>无标题文档</title> </head> <body> <!--一、获取时间的--> <script > var d = new Date() //获取时间 var time = d.getHours() //对获取的时间截取小时 if (time < 10) { document.write("<b>早安</b>") } else if(time>=10 && time<17) { document.write("<b>午安</b>") } else { document.write("<b>晚安</b>") } </script> <!--生成随机数的--> <script> var x=Math.random() if(x>0.5) { document.write("<a href='http://www.baidu.com'>百度</a>") } else { document.write("<a href='http://www.qq.com'>腾讯</a>") } </script> </body> </html> </body> </html>