<!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" xml:lang="en"><head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>冻结页面</title></head><body><script>function freeze(){ alert('对不起，死机了！'); //首先提示已经完成效果 while(true){ //进入循环 window.history.back(-1); //后退一格 }} </script><form><input type="button" value="Freeze" οnclick="freeze()" /></form></body></html>