在textarea中怎么才能编辑字体的大小,字号,颜色等?

不.是那种自由编辑,就好比把frontpage软件的一些功能做成网页的形式.

http://www.csdn.net/expert/topic/120/120629.shtm

lb5000中non-cgi/edotor目录(www.17do.com)
两个文件
edit.html<html>
<head>
<title>LB5000 HTML编辑器</title>
<link rel="STYLESHEET" type="text/css" href="edit.css">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head><body bgcolor="menu" onload="InitDocument();" STYLE="margin:0pt;padding:0pt"><div class="yToolbar" ID="ExtToolbar">
<div class="TBHandle"></div>
   <div class="Btn" TITLE="删除" LANGUAGE="javascript" onclick="format1('delete');">
    <img class="Ico" src="images\delete.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="剪切" LANGUAGE="javascript" onclick="format1('cut');">
    <img class="Ico" src="images\cut.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="复制" LANGUAGE="javascript" onclick="format1('copy');">
    <img class="Ico" src="images\copy.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="粘贴" LANGUAGE="javascript" onclick="format1('paste');">
    <img class="Ico" src="images\paste.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="撤消" LANGUAGE="javascript" onclick="format1('undo');">
    <img class="Ico" src="images\undo.gif" WIDTH="17" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="恢复" LANGUAGE="javascript" onclick="format1('redo');">
    <img class="Ico" src="images\redo.gif" WIDTH="16" HEIGHT="16">
  </div>  <div class="TBSep"></div>
  <div class="Btn" TITLE="插入表格" LANGUAGE="javascript" onclick="fortable()">
    <img class="Ico" src="images\table.gif" WIDTH="18" HEIGHT="18">
  </div>
  <div class="Btn" TITLE="插入超级连接" LANGUAGE="javascript" onclick="UserDialog('CreateLink')">
    <img class="Ico" src="images\wlink.gif" WIDTH="22" HEIGHT="22">
</div>
<div class="Btn" TITLE="插入图片" LANGUAGE="javascript" onclick="UserDialog('InsertImage');">
    <img class="Ico" src="images\img.gif" WIDTH="22" HEIGHT="22">
  </div>
<div class="Btn" TITLE="插入水平线" LANGUAGE="javascript" onclick="format('InsertHorizontalRule')">
    <img class="Ico" src="images/hr.gif" WIDTH="16" HEIGHT="16">
</div><div class="TBSep"></div>
<div class="Btn" TITLE="提交" LANGUAGE="javascript" onclick="handin()">
    <img class="Ico" src="images/save.gif" WIDTH="16" HEIGHT="16">
</div> <div class="TBSep"></div><div  TITLE="欢迎使用LB5000 HTML代码编辑器" >
                
                
                
    <font  size=2px>
    < =HTML代码编辑完毕，请按提交
    </font>
</div>

</div><div class="yToolbar">
  <div class="TBHandle"></div>
<select ID="formatSelect" class="TBGen" title="段落格式" onchange="doSelectClick('FormatBlock',this)" style="font: icon; width: 80px;">
<option>段落格式</option>
<option VALUE="<P>">普通
<option VALUE="<PRE>">已编排格式
<option VALUE="<H1>">标题一
<option VALUE="<H2>">标题二
<option VALUE="<H3>">标题三
<option VALUE="<H4>">标题四
<option VALUE="<H5>">标题五
<option VALUE="<H6>">标题六
            <option VALUE="<H7>">标题七
</select>
<select id="specialtype" class="TBGen" onchange="doSelectClick('FormatBlock',this)" style="font: icon; width: 100px;">
<option>特殊字体格式</option>
<option VALUE="SUP">上标
<option VALUE="SUB">下标
<option VALUE="DEL">删除线
<option VALUE="BLINK">闪烁
<option VALUE="BIG">增大字体
<option VALUE="SMALL">减小字体
</select>
   <div class="Btn" TITLE="字体颜色" LANGUAGE="javascript" onclick="foreColor();">
    <img class="Ico" src="images\fgcolor.gif" WIDTH="23" HEIGHT="22">
  </div>
  <div class="TBSep"></div>  <div class="Btn" TITLE="加粗" LANGUAGE="javascript" onclick="format('bold');">
    <img class="Ico" src="images\bold.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="斜体" LANGUAGE="javascript" onclick="format('italic');">
    <img class="Ico" src="images\italic.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="下划线" LANGUAGE="javascript" onclick="format('underline');">
    <img class="Ico" src="images\underline.gif" WIDTH="16" HEIGHT="16">
  </div>  <div class="TBSep"></div>  <div class="Btn" TITLE="左对齐" NAME="Justify" LANGUAGE="javascript" onclick="format('justifyleft');">
    <img class="Ico" src="images\aleft.gif" WIDTH="17" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="居中" NAME="Justify" LANGUAGE="javascript" onclick="format('justifycenter');">
    <img class="Ico" src="images\center.gif" WIDTH="17" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="右对齐" NAME="Justify" LANGUAGE="javascript" onclick="format('justifyright');">
    <img class="Ico" src="images\aright.gif" WIDTH="16" HEIGHT="16">
  </div>  <div class="TBSep"></div>  <div class="Btn" TITLE="编号" LANGUAGE="javascript" onclick="format('insertorderedlist');">
    <img class="Ico" src="images\numlist.gif" WIDTH="18" HEIGHT="18">
  </div>
  <div class="Btn" TITLE="项目符号" LANGUAGE="javascript" onclick="format('insertunorderedlist');">
    <img class="Ico" src="images\bullist.gif" WIDTH="18" HEIGHT="18">
  </div>
  <div class="Btn" TITLE="减少缩进量" LANGUAGE="javascript" onclick="format('outdent');">
    <img class="Ico" src="images\outdent.gif" WIDTH="16" HEIGHT="16">
  </div>
  <div class="Btn" TITLE="增加缩进量" LANGUAGE="javascript" onclick="format('indent');">
    <img class="Ico" src="images\indent.gif" WIDTH="16" HEIGHT="16">
  </div>

  <div class="TBSep"></div>
  <div class="Btn" TITLE="使用帮助" LANGUAGE="javascript" onclick="help();">
    <img class="Ico" src="images\help.gif" WIDTH="16" HEIGHT="16">
  </div>

  <div class="TBSep"></div>
</div><div class="yToolbar">
  <div class="TBHandle"></div>
<div class="TBHandle"></div><select language="javascript" class="TBGen" id="FontName" title="字体名" onchange="format('fontname',this[this.selectedIndex].value);">
  <option class="heading" selected>字体<option value="宋体">宋体<option value="黑体">黑体<option value="楷体_GB2312">楷体<option value="仿宋_GB2312">仿宋<option value="隶书">隶书<option value="幼圆">幼圆<option value="新宋体">新宋体<option value="细明体">细明体<option value="Arial">Arial<option value="Arial Black">Arial Black<option value="Arial Narrow">Arial Narrow<option value="Bradley Hand ITC">Bradley
  Hand ITC<option value="Brush Script MT">Brush Script MT<option value="Century Gothic">Century Gothic<option value="Comic Sans MS">Comic Sans
  MS<option value="Courier">Courier<option value="Courier New">Courier New<option value="MS Sans Serif">MS Sans Serif<option value="Script">Script<option value="System">System<option value="Times New Roman">Times New Roman<option value="Viner Hand ITC">Viner Hand ITC<option value="Verdana">Verdana<option value="Wide Latin">Wide Latin<option value="Wingdings">Wingdings</option></select> <select language="javascript" class="TBGen" id="FontSize" title="字号大小" onchange="format('fontsize',this[this.selectedIndex].value);"> <option class="heading" selected>字号<option value="7">一号<option value="6">二号<option value="5">三号<option value="4">四号<option value="3">五号<option value="2">六号<option value="1">七号</option></select>
<div class="TBSep"></div>
<div class="TBGen" id="EditMode" title="使用 HTML"><input onclick="setMode(this.checked);" type="checkbox">使用 HTML 语法书写 </div></div>  <div class="TBSep"></div>
</div>
<iframe class="Composition" ID="Composition" MARGINHEIGHT="1" MARGINWIDTH="1" width="100%" height="212">
</iframe><script src="edit.js" type="text/javascript"></script></body>
</html>
edit.js
SEP_PADDING = 5
HANDLE_PADDING = 7var yToolbars = new Array();var YInitialized = false;function document.onreadystatechange()
{
  if (YInitialized) return;
  YInitialized = true;  var i, s, curr;  for (i=0; i<document.body.all.length; i++)
  {
    curr=document.body.all[i];
    if (curr.className == "yToolbar")
    {
      InitTB(curr);
      yToolbars[yToolbars.length] = curr;
    }
  }  DoLayout();
  window.onresize = DoLayout;  Composition.document.open()
  Composition.document.write("<head><style type=\"text/css\">body {font-size: 10.8pt}</style><meta http-equiv=Content-Type content=\"text/html; charset=gb2312\"></head><BODY bgcolor=\"#FFFFFF\" MONOSPACE></body>");
  Composition.document.close()
  Composition.document.designMode="On"
}function InitBtn(btn)
{
  btn.onmouseover = BtnMouseOver;
  btn.onmouseout = BtnMouseOut;
  btn.onmousedown = BtnMouseDown;
  btn.onmouseup = BtnMouseUp;
  btn.ondragstart = YCancelEvent;
  btn.onselectstart = YCancelEvent;
  btn.onselect = YCancelEvent;
  btn.YUSERONCLICK = btn.onclick;
  btn.onclick = YCancelEvent;
  btn.YINITIALIZED = true;
  return true;
}function InitTB(y)
{
  y.TBWidth = 0;  if (! PopulateTB(y)) return false;  y.style.posWidth = y.TBWidth;  return true;
}
function YCancelEvent()
{
  event.returnValue=false;
  event.cancelBubble=true;
  return false;
}function BtnMouseOver()
{
  if (event.srcElement.tagName != "IMG") return false;
  var image = event.srcElement;
  var element = image.parentElement;  if (image.className == "Ico") element.className = "BtnMouseOverUp";
  else if (image.className == "IcoDown") element.className = "BtnMouseOverDown";  event.cancelBubble = true;
}function BtnMouseOut()
{
  if (event.srcElement.tagName != "IMG") {
    event.cancelBubble = true;
    return false;
  }  var image = event.srcElement;
  var element = image.parentElement;
  yRaisedElement = null;  element.className = "Btn";
  image.className = "Ico";  event.cancelBubble = true;
}function BtnMouseDown()
{
  if (event.srcElement.tagName != "IMG") {
    event.cancelBubble = true;
    event.returnValue=false;
    return false;
  }  var image = event.srcElement;
  var element = image.parentElement;  element.className = "BtnMouseOverDown";
  image.className = "IcoDown";  event.cancelBubble = true;
  event.returnValue=false;
  return false;
}function BtnMouseUp()
{
  if (event.srcElement.tagName != "IMG") {
    event.cancelBubble = true;
    return false;
  }  var image = event.srcElement;
  var element = image.parentElement;  if (element.YUSERONCLICK) eval(element.YUSERONCLICK + "anonymous()");  element.className = "BtnMouseOverUp";
  image.className = "Ico";  event.cancelBubble = true;
  return false;
}function PopulateTB(y)
{
  var i, elements, element;  elements = y.children;
  for (i=0; i<elements.length; i++) {
    element = elements[i];
    if (element.tagName == "SCRIPT" || element.tagName == "!") continue;    switch (element.className) {
    case "Btn":
      if (element.YINITIALIZED == null) {
if (! InitBtn(element))
return false;
      }      element.style.posLeft = y.TBWidth;
      y.TBWidth += element.offsetWidth + 1;
      break;    case "TBGen":
      element.style.posLeft = y.TBWidth;
      y.TBWidth += element.offsetWidth + 1;
      break;    case "TBSep":
      element.style.posLeft = y.TBWidth + 2;
      y.TBWidth += SEP_PADDING;
      break;    case "TBHandle":
      element.style.posLeft = 2;
      y.TBWidth += element.offsetWidth + HANDLE_PADDING;
      break;    default:
      return false;
    }
  }  y.TBWidth += 1;
  return true;
}function DebugObject(obj)
{
  var msg = "";
  for (var i in TB) {
    ans=prompt(i+"="+TB[i]+"\n");
    if (! ans) break;
  }
}function LayoutTBs()
{
  NumTBs = yToolbars.length;  if (NumTBs == 0) return;  var i;
  var ScrWid = (document.body.offsetWidth) - 6;
  var TotalLen = ScrWid;
  for (i = 0 ; i < NumTBs ; i++) {
    TB = yToolbars[i];
    if (TB.TBWidth > TotalLen) TotalLen = TB.TBWidth;
  }  var PrevTB;
  var LastStart = 0;
  var RelTop = 0;
  var LastWid, CurrWid;  var TB = yToolbars[0];
  TB.style.posTop = 0;
  TB.style.posLeft = 0;  var Start = TB.TBWidth;
  for (i = 1 ; i < yToolbars.length ; i++) {
    PrevTB = TB;
    TB = yToolbars[i];
    CurrWid = TB.TBWidth;    if ((Start + CurrWid) > ScrWid) {
      Start = 0;
      LastWid = TotalLen - LastStart;
    }
    else {
      LastWid = PrevTB.TBWidth;
      RelTop -= TB.offsetHeight;
    }    TB.style.posTop = RelTop;
    TB.style.posLeft = Start;
    PrevTB.style.width = LastWid;    LastStart = Start;
    Start += CurrWid;
  }  TB.style.width = TotalLen - LastStart;  i--;
  TB = yToolbars[i];
  var TBInd = TB.sourceIndex;
  var A = TB.document.all;
  var item;
  for (i in A) {
    item = A.item(i);
    if (! item) continue;
    if (! item.style) continue;
    if (item.sourceIndex <= TBInd) continue;
    if (item.style.position == "absolute") continue;
    item.style.posTop = RelTop;
  }
}function DoLayout()
{
  LayoutTBs();
}function validateMode()
{
  if (! bTextMode) return true;
  alert("请取消“使用 HTML 语法书写”选项再使用系统编辑功能!");
  Composition.focus();
  return false;
}function format1(what,opt)
{
  if (opt=="removeFormat")
  {
    what=opt;
    opt=null;
  }  if (opt==null) Composition.document.execCommand(what);
  else Composition.document.execCommand(what,"",opt);  pureText = false;
  Composition.focus();
}function format(what,opt)
{
  if (!validateMode()) return;  format1(what,opt);
}function setMode(newMode)
{
  bTextMode = newMode;
  var cont;
  if (bTextMode) {
    cleanHtml();
    cleanHtml();    cont=Composition.document.body.innerHTML;
    Composition.document.body.innerText=cont;
  } else {
    cont=Composition.document.body.innerText;
    Composition.document.body.innerHTML=cont;
  }  Composition.focus();
}function getEl(sTag,start)
{
  while ((start!=null) && (start.tagName!=sTag)) start = start.parentElement;
  return start;
}function UserDialog(what)
{
  if (!validateMode()) return;  Composition.document.execCommand(what, true);  pureText = false;
  Composition.focus();
}function foreColor()
{
  if (! validateMode()) return;
  var arr = showModalDialog("selcolor.html", "", "dialogWidth:18.5em; dialogHeight:17.5em; status:0");
  if (arr != null) format('forecolor', arr);
  else Composition.focus();
}function fortable()
{
  if (! validateMode()) return;
  var arr = showModalDialog("table.html", "", "dialogWidth:13.5em; dialogHeight:10.5em; status:0");

  if (arr != null){
  var ss;
  ss=arr.split("*")
  row=ss[0];
  col=ss[1];
  var string;
  string="<table border=1>";
  for(i=1;i<=row;i++){
  string=string+"<tr>";
  for(j=1;j<=col;j++){
  string=string+"<td></td>";
  }
  string=string+"</tr>";
  }
  string=string+"</table>";
  content=Composition.document.body.innerHTML;
  content=content+string;
   Composition.document.body.innerHTML=content;
  }
  else Composition.focus();
}
function cleanHtml()
{
  var fonts = Composition.document.body.all.tags("FONT");
  var curr;
  for (var i = fonts.length - 1; i >= 0; i--) {
    curr = fonts[i];
    if (curr.style.backgroundColor == "#ffffff") curr.outerHTML = curr.innerHTML;
  }
}function getPureHtml()
{
  var str = "";
  var paras = Composition.document.body.all.tags("P");
  if (paras.length > 0) {
    for (var i=paras.length-1; i >= 0; i--) str = paras[i].innerHTML + "\n" + str;
  } else {
    str = Composition.document.body.innerHTML;
  }
  return str;
}var bLoad=false
var pureText=true
var bodyTag="<head><style type=\"text/css\">body {font-size: 10.8pt}</style><meta http-equiv=Content-Type content=\"text/html; charset=gb2312\"></head><BODY bgcolor=\"#FFFFFF\" MONOSPACE>"
var bTextMode=falsepublic_description=new Editorfunction Editor()
{
  this.put_HtmlMode=setMode;
  this.put_value=putText;
  this.get_value=getText;
}function getText()
{
if (bTextMode)
return Composition.document.body.innerText;
else
{
cleanHtml();
cleanHtml();
return Composition.document.body.innerHTML;
}
}function putText(v)
{
if (bTextMode)
Composition.document.body.innerText = v;
else
Composition.document.body.innerHTML = v;
}function InitDocument()
{
Composition.document.open();
Composition.document.write(bodyTag);
Composition.document.close();
bLoad=true;
}function doSelectClick(str, el) {
var Index = el.selectedIndex;
if (Index != 0){
el.selectedIndex = 0;
if (el.id == "specialtype")
specialtype(el.options[Index].value);
else
format(str,el.options[Index].value);
}
}
var bIsIE5 = navigator.userAgent.indexOf("IE 5")  > -1;
var edit;
var RangeType;function specialtype(Mark){
var strHTML;
if (bIsIE5) selectRange();
if (RangeType == "Text"){
strHTML = "<" + Mark + ">" + edit.text + "</" + Mark + ">";
edit.pasteHTML(strHTML);
Composition.focus();
edit.select();
}
}function selectRange(){
edit = Composition.document.selection.createRange();
RangeType =  Composition.document.selection.type;
}function handin()
{
  var strHTMLbegin;
  var strHTMLend;
  strHTMLbegin = "[HTML]";
  strHTMLend = "[/HTML]";
  self.opener.FORM.inpost.value+=strHTMLbegin + Composition.document.body.innerHTML + strHTMLend;
   self.close();
}function help()
{
    var helpmess;
    helpmess="---------------填写帮助---------------\r\n\r\n"+
         "1.请不要发表有危险性的脚本。\r\n\r\n"+
         "2.如果要书写源代码，请选中用\r\n\r\n"+
         "　HTML语法书写.\r\n\r\n"+
         "3.需要你自己运行,才能看效果.\r\n\r\n"+
         "4.如果书写js，尽量不要在这儿书写.\r\n\r\n";
    alert(helpmess);}

首先，textarea不能实现那种自由编辑,就好比把frontpage软件的一些功能做成网页的形式. 要实现的话得用iframe，将其document.designMode="On"，就可以在其中输入文字了。然后就是在父窗口得到其中文字，对其作出处理，比如两边加上<b>,<font color=...>等等，再把文字写回去。比较COOL的效果可以看看http://go3.163.com/~fsl/ring/helpmaker_10415.zip

net_lover(孟子E章)你的那个代码我试了，但是有两个问题:
1.怎样改变textarea的大小.
2.我用asp程序request.from("rMode")提取在textarea中输入的内容，但存入数据库后都为on这个字符串。请问怎样才能输入我在textarea中输入的内容。

document.write("<IFRAME NAME=EditCtrl WIDTH=200 height=100></IFRAME>")
改变大小！！
至于取内容，可以参考本站发表文档的页面！

net_lover(孟子E章)想请教一个问题：
把这句改为document.write("<textarea name=EditCtrl rows="10" cols="60"></textarea>")已经能提取内容并存储了，但textarea的大小又固定了，rows和cols根本不起作用，请问怎样才能改变textarea的大小.

改为textarea之后又不能编辑了，怎样才能调整textarea的高和宽并能进行编辑?

var rows1,cols1;
document.write("<textarea name=EditCtrl rows="+rows1+" cols="+cols1+"></textarea>")

颜色不好改变：
<FORM NAME="formName">
<INPUT TYPE="checkbox"
ONCLICK="if (this.checked){
                  this.form.aField.style.fontSize = '16pt';
                  this.form.aField.style.fontWeight = 'bold';
                  this.form.aField.style.backgroundColor = '#ff0000';
                  this.form.aField.style.fontFamily = '黑体';}
                else
                  this.form.aField.style.fontWeight = 'normal';"
>点击测试<br>
<textarea NAME="aField" VALUE="测试">测试文字</textarea>
</FORM>

颜色也是可以改变的：
<FORM NAME="formName"><INPUT TYPE="checkbox"
ONCLICK="if (this.checked){
                  this.form.aField.style.fontSize = '16pt';
                  this.form.aField.style.fontWeight = 'bold';
                  this.form.aField.style.color = '#ff0000';
                  this.form.aField.style.fontFamily = '黑体';}
                else
                  this.form.aField.style.fontWeight = 'normal';"
>点击测试<br>
<textarea NAME="aField" VALUE="测试">测试文字</textarea>
</FORM>

to:net_lover(孟子E章)　上面的代码是你的原著么？

完美的例子：
<FORM NAME="formName">
<INPUT TYPE="checkbox"
ONCLICK="if (this.checked){
                  this.form.aField.style.fontSize = '16pt';
                  this.form.aField.style.fontWeight = 'normal';
                  this.form.aField.style.color = '#ff0000';
                  this.form.aField.style.fontFamily = '黑体';
  this.form.aField.style.backgroundColor = '#ccffcc';
  this.form.aField.style.fontFamily = '黑体';
  this.form.aField.style.textDecoration = 'none line-through';
  this.form.aField.style.fontStyle = 'normal';
                  this.form.aField.style.textAlign = 'left';
}
                else
                 {this.form.aField.style.fontWeight = 'bold';
  this.form.aField.style.fontSize = '48pt';
                  this.form.aField.style.textDecoration = 'underline';
                  this.form.aField.style.color = '#0099ff';
                  this.form.aField.style.fontFamily = '楷体_GB2312';
  this.form.aField.style.backgroundColor = '#FFccFF';
  this.form.aField.style.fontStyle = 'italic';
  this.form.aField.style.textAlign = 'center';
}"
>点击测试<br>
<textarea NAME="aField" VALUE="测试">测试文字</textarea>
</FORM>

to:net_lover(孟子E章)　这些代码我好像在那个网站上看过，www.oztime.net，厉害厉害！！原来是你写的

调试易

在textarea中怎么才能编辑字体的大小,字号,颜色等?

解决方案 »