需求:点击button获得input框中选中的内容,让选中的内容变红,
实现:代码如下
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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv= "content-type" content= "text/html;charset=utf-8" >
<title>Test</title>
<style type= "text/css" >
div{
display: none;
}
</style>
</head>
<body>
<input type= "text" id= "txt" value= "" />
<input type= "button" value= "获取文本框内的值" id= "btn" onclick= "getText();" />
<div id= "showText" >
</div>
<script type= "text/javascript" >
function getText () {
var showText = document.getElementById( "showText" );
showText.style.display = "block" ;
showText.style.color = "red" ;
showText.innerHTML=document.getElementById( "txt" ).value;
}
</script>
</body>
</html>
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效果: