<script src="~/Content/qqFace/js/jquery.qqFace.js?v=3"></script>
<script src="~/Content/qqFace/js/jquery-browser.js"></script>

<div style="width:50px;height:30px;margin-top:3px;text-align:center;line-height:30px;border-right:1px solid #dee5e7"><img src="~/Content/emoji.png" class="emotion" /></div>
<textarea class="input" id="saytext" name="saytext" style="display:none"></textarea>

$(function () {
$('.emotion').qqFace({
id: 'facebox',
assign: 'saytext', //给输入框赋值
path: '/Content/qqFace/arclist/' //表情图片存放的路径
});
});

function replace_em(str) {
str = str.replace(/\</g, '<');
str = str.replace(/\>/g, '>');
str = str.replace(/\n/g, '<br/>');
str = str.replace(/\[em_([0-9]*)\]/g, '<img src="/Content/qqFace/arclist/$1.gif" border="0" />');
return str;
}

//修改原来js
var str = $("#saytext").val().trim();
$("#show").append(replace_em(str));
$("#saytext").val('');

 private string emoij = "/::);/::~;/::B;/::|;/::<;/::$;/::X;/::Z;/::'(;/::-|;/::@;/::P;/::D;/::O;/::(;/:–b;/::Q;/::T;/:,@P;/:,@-D;/::d;/:,@o;/::g;/:|-);/::!;/::L;/::>;/::,@;/:,@f;/::-S;/:?;/:,@x;/:,@@;/::8;/:,@!;/:xx;/:bye;/:wipe;/:dig;/:&-(;/:B-);/:<@;/:@>;/::-O;/:>-|;/:P-(;/::'|;/:X-);/::*;/:@x;/:8*;[拥抱];[月亮];[太阳];[炸弹];/:!!!;/:pd;/:pig;/:<W>;/:coffee;/:eat;/:heart;[强];[弱];[握手];[胜利];[抱拳];[勾引];[OK];[NO];/:rose;/:fade;/:showlove;[跳跳];[转圈]";
var emoijarray = emoij.Split(';');
int len = emoijarray.Length;
for (int i = 0; i < len; i++)
{
string str = string.Format("<img src={0}/Content/qqFace/arclist/{1}.gif{2} border={3}0{4}>",'"',i+1, '"', '"', '"');
if (xmlstr.Contains(str))//查找发送的文本消息中是否含有表情图片标签，有的话替换成对应的字符码，或许大家有更好的方式替换，我这只是循环去查找匹配的替换
{
xmlstr = xmlstr.Replace(str, emoijarray[i]);
}
}