这样吧
<input type="file" runat="server" id="file1" size="40" onfocus="javascript:this.disabled='true';"/> 送你三本手册!DHTML参考手册
http://download.csdn.net/source/308913样式表中文手册
http://download.csdn.net/source/304124JScript语言参考
http://download.csdn.net/source/308916
<input type="file" runat="server" id="file1" size="40" onfocus="javascript:this.disabled='true';"/> 送你三本手册!DHTML参考手册
http://download.csdn.net/source/308913样式表中文手册
http://download.csdn.net/source/304124JScript语言参考
http://download.csdn.net/source/308916
<input type="file" runat="server" id="file1" size="40" onfocus="this.disabled=true;this.disabled=false"/>
<input id='mod' type="text" disabled /><input type="button" value="浏览" onclick="document.getElementById('test').click();" />