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<title>无标题文档</title>
<script language="javascript">
function doBold(){
doc.execCommand(‘Bold‘);
Editor.focus();
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function doItalic(){
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function doUnderline(){
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function EditResource(){
form1.Preview.value=doc.body.innerHTML;
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<body>
富文本编辑器<p>
<a href="javascript:doUndo();">复原</a> <a href="javascript:doPrint();">打印</a>
<a href="javascript:doCut();">剪切</a> <a href="javascript:doCopy();">复制</a>
<a href="javascript:doPaste();">粘贴</a>
<br>
<a href="javascript:doBold();">粗</a> <a href="javascript:doItalic();">斜</a> <a href="javascript:doUnderline();"><u>下划</u> </a>
<a href="javascript:doSuperscript();"><u>上标</u> </a> <a href="javascript:doSubscript();"><u>下标</u> </a>
<a href="javascript:doStrikeThrough();"> <strike>中划</strike></a>
居左 居中 居右 缩进 缩出 图片 插入连接
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<form id=form1 method="POST" action="edit-m.htm?val=‘javascript:docv;‘">
<IFRAME id=Editor style="WIDTH: 100%; HEIGHT: 150px;
src="about:blank"></IFRAME>
<BUTTON id=mxh onclick=EditResource();Preview.focus();>编辑源代码</BUTTON>
<BUTTON class="function" onclick=SeePreview();Preview.focus();>结果预览</BUTTON>
<br>
<TEXTAREA id=Preview style="OVERFLOW: auto; WIDTH: 100%; HEIGHT: 150px; </TEXTAREA>
<input type="submit" value="提交" name="B1">
<input type="reset" value="全部重写" name="B2">
</form>
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var doc;
doc=document.frames.Editor.document;
doc.designMode = "On";
window.setTimeout(‘Editor.focus()‘,100);
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原文地址：http://www.cnblogs.com/6zhi/p/5639404.html
