console 命令行工具 X clear

console

$(function() {
  $("#div2").click(function() {
    $("#div1").slideToggle();
  });
})

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Document</title>
</head>
<body>
  <div>4</div>
<div>3</div>
<p id="div1">11111</p>
<div id="div2">1</div>

</body>
</html>