学习笔记

来源：互联网发布：java if else语句格式编辑：程序博客网时间：2024/04/30 07:59

<!DOCTYPE input PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>哈哈</title>
<script type="text/javascript">
function changeb(id)
{
  //alert(id);
  if(id=="t")
  {alert(id);
   document.getElementById("teacher").style.display="block";
   document.getElementById("student").style.display="none";
   document.getElementById("jiazhang").style.display="none";
  }
  else if(id=="s")
  {alert(id);
   document.getElementById("student").style.display="block";
   document.getElementById("teacher").style.display="none";
   document.getElementById("jiazhang").style.display="none";
  }
  else if(id=="j")
  {alert(id);
   document.getElementById("jiazhang").style.display="block";
   document.getElementById("teacher").style.display="none";
   document.getElementById("student").style.display="none";
  }
}
</script>
</head>
<body>
  <input type="radio" name="zhiwu" onclick="changeb('t')" value="老师" checked >老师
  <input type="radio" name="zhiwu" onclick="changeb('s')" value="学生">学生
  <input type="radio" name="zhiwu" onclick="changeb('j')"value="家长">家长
  <div id="teacher">教师</div>
  <div id="student">学生</div>
  <div id="jiazhang">家长</div>
</body>
</html>