<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="./js/jquery.min.js"></script>
</head>
<body>
<div>你好</div>
<input type="text" value="123">
<script>
//获取元素内容
console.log($("div").html());
//获取设置元素文本内容
$("div").html("123");
console.log($("div").text());
$("div").text("1234");
//获取设置表单值
console.log($("input").val());
$("input").val("123");
</script>
</body>
</html>
运行结果
