UC知道javascript: 怎么通过代码在textarea中加<br>
来源：百度知道 编辑：UC知道 时间：2024/06/04 08:52:25
为什么我加不了换行??<br>和'\n'都不行
<html>
<head>
<script>
function aa()
{
var ctrl=document.getElementById("txtarea");
ctrl.innerHTML+="aa";
ctrl.innerHTML+="<br>";
}
</script>
</head>
<body>
<textarea rows=10 cols=10 scrolling=true id="txtarea">
</textarea>
<input type="button" value="加文本" onclick="aa()">
</body>
</html>
<html>
<head>
<script>
function aa()
{
var ctrl=document.getElementById("txtarea");
ctrl.innerHTML+="aa";
ctrl.innerHTML+="<br>";
}
</script>
</head>
<body>
<textarea rows=10 cols=10 scrolling=true id="txtarea">
</textarea>
<input type="button" value="加文本" onclick="aa()">
</body>
</html>
<html>
<head>
<script>
function aa()
{
var ctrl=document.getElementById("txtarea");
ctrl.value+="aaa\r\n"
}
</script>
</head>
<body>
<textarea rows=10 cols=10 scrolling=true id="txtarea">
aa<br>aa<br>
</textarea>
<input type="button" value="加文本" onclick="aa()">
</body>
</html>
textarea.style.wordbreak = 'break-all'