<asp:LinkButton ID="BtnBaiyakuNo" runat="server" OnClientClick="openNo(this); return false;" TabIndex="0" /> function openNo(sender) { var linkNo = sender.toString().split("'")[1].replace(/\$/g,"_"); var strNo = document.getElementById(linkNo).innerText; //这个strNo 就是了 } 这个链接后台代码如下: <a onclick="openNo(this); return false;" id="ctl00_MainContent_BtnBaiyakuNo" href="javascript:__doPostBack('ctl00$MainContent$BtnBaiyakuNo','')">my0000001</a> 其中： sender=javascript:__doPostBack('ctl00$MainContent$BtnBaiyakuNo','') linkNo = ctl00_MainContent_BtnBaiyakuNo strNo = my0000001