你题目的解答代码如下:(如有帮助,望采纳!谢谢! 点击我这个回答右上方的【采纳】按钮)
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title> 页面名称 </title>
</head>
<body>
<input type="text" id="text" value="" />
<input type="button" value="dd" onclick="fp();" />
<div id="box"></div>
<script type="text/javascript">
function fp() {
var str = document.getElementById("text").value;
var div = document.createElement("div");
div.innerHTML = str;
var box = document.getElementById("box");
box.appendChild(div);
}
</script>
</body>
</html>
简单一些的
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title> 页面名称 </title>
</head>
<body>
<input type="text" id="text" value="" />
<input type="button" value="dd" onclick="fp();" />
<div id="box"></div>
<script type="text/javascript">
function fp() {
var str = document.getElementById("text").value;
var box = document.getElementById("box");
box.innerHTML += str+"<br>";
}
</script>
</body>
</html>