原帖:http://topic.csdn.net/u/20090525/09/6d63a9c3-1d01-4e2b-9b55-a47650b5b8f3.html
<asp:TextBox ID="txtTeamList" runat="server" TextMode="MultiLine" Width="250px" Height="150px" TabIndex="2" οnkeyup="this.value = this.value.slice(0, 3000)"> </asp:TextBox>