Javascript实现简单的富文本编辑器附演示
<spanstyle="font-size:14px;"><!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
<head>
<metahttp-equiv="content-type"content="text/html;charset=utf-8">
<title>富文本编辑器</title>
</head>
<body>
<fieldset>
<legend>编辑区</legend>
<div>
<form>
字体颜色：
<selectonchange="setFontColor(this)">
<optionvalue="black">Black</option>
<optionvalue="red">Red</option>
<optionvalue="green">Green</option>
<optionvalue="blue">Blue</option>
</select>
字体样式：
<selectonchange="setFontStyle(this)">
<optionvalue="bold">Bold</option>
<optionvalue="italic">Italic</option>
<optionvalue="underline">Underline</option>
<optionvalue="striketthrough">StriketThrough</option>
</select>
字体名称：
<selectonchange="setFontFamily(this)">
<optionvalue="serif">Serif</option>
<optionvalue="sans-serif">Sans-serif</option>
<optionvalue="monospace">Monospace</option>
<optionvalue="comicsansms">ComicSans</option>
</select>
</form>
</div>
<br/>
<divid="editableText"contenteditable="true"style="width:400px;min-height:100px;border:2pxdashed#ccc"></div>
</fieldset>
<scripttype="text/javascript">
functionsetFontColor(obj)
{
document.execCommand("forecolor",false,obj.value);
}
functionsetFontStyle(obj)
{
document.execCommand(obj.value,false,null);
}
functionsetFontFamily(obj)
{
document.execCommand("fontname",false,obj.value);
}
</script>
</body>
</html></span>
在线演示：http://jsfiddle.net/Web_Code/nPNv3/embedded/result/不足之处还请谅解，提出指正方法