JS簡單實現元素複製樣本附圖

最後更新：2013-12-30 來源：互聯網

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原始碼：
複製代碼代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="Author" content="">
<title>內容篩選</title>

<script type='text/javascript'>

function getPositions() {
var el = document.getElementById('shaixuan');
var startPosition = 0;//所選文本的開始位置
var endPosition = 0;//所選文本的結束位置
if(document.selection) {
//IE
var range = document.selection.createRange();//建立範圍對象
var drange = range.duplicate();//複製對象

drange.moveToElementText(el); //複製範圍
drange.setEndPoint('EndToEnd', range);

startPosition = drange.text.length - range.text.length;
endPosition = startPosition + range.text.length;
}
else if(window.getSelection) {
//Firefox,Chrome,Safari etc
startPosition = el.selectionStart;
endPosition = el.selectionEnd;
}
return {
"start":startPosition,
"end":endPosition
}
}

//@todo 擷取textarea中，選中的文本
function getshaixuan() {
var position = getPositions();
var start = position.start;//開始位置
var end = position.end;//結束位置
var text = document.getElementById('shaixuan').value;
var selectText = text.substr(start, (end - start));//textarea中，選中的文本
//alert(selectText);
var textBox1 = document.getElementById("canjia");
textBox1.innerText=textBox1.value+selectText;
}
//]]>
</script>

<title>元素的複製</title>
<style type="text/css">

</style>
</head>

<body>
<p class="p1">篩選名單</p>
<textarea id="shaixuan" name="check" cols="23" rows="15" class="p2"></textarea>
<div class="p3">參加名單</div>
<textarea id="canjia" name="canjia" cols="23" rows="15" class="p4"></textarea>
<input type="button" value="內容複寫" class="p5" onclick="getshaixuan();">


</body>
</html>

實現效果：

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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JS簡單實現元素複製樣本附圖

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