//js
$(function(){
var name=""; var kmname=[]; var n= $("input[type=checkbox]").click(function(){ kmname.length=0; $("input[name=\"inputcheck\"]:checked").each(function(){ kmname.push($(this).val()); }) name=kmname.join(','); $("#TextBox1").val(name); }) })//html
<input type="checkbox" id="yuwen" name="inputcheck" value="语文"/>语文
<input type="checkbox" id="shuxue" name="inputcheck" value="数学"/>数学<br /> <input type="checkbox" id="yingyu" name="inputcheck" value="英语" />英语<input type="checkbox" id="huaxue" name="inputcheck" value="化学" />化学<br /> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>