<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns=""> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>文本框保留格式 ucoolweb.com</title> </head><body>
<form id="form1" name="form1" method="post" action=""> <textarea name="textContent" cols="100" rows="15" id="textContent"></textarea> <br /> <input type="button" name="Submit" value="转换输出" οnclick="outHTML()" /> <input name="checkbox" type="checkbox" id="checkbox" value="checkbox" checked="checked" /> <label for="checkbox" style="color:#F00">启用转换输出</label> </form> <div id="out" style="border:1px solid #F90; padding:10px; background:#FFF8DC; margin-top:10px">请在上面文本框录入带HTML标记的文本测试！</div> <script type="text/javascript"> /********************************************************** * author Tang Guohui, created: 2007-12-9 12:30:15 **********************************************************/ function outHTML() { var getValue=document.getElementById("textContent").value; var endValue=((getValue.replace(/<(.+?)>/gi,"<$1>")).replace(/ /gi," ")).replace(/\n/gi,"<br>"); /* (1)转义“<”、“>” (2)改半角空格为 (3)保留换行 */if (document.getElementById("checkbox").checked==true) {
document.getElementById("out").innerHTML=endValue; }else{ document.getElementById("out").innerHTML=getValue; }}//end outHTML function
</script> </body> </html>