<div class="codetitle"> <span><a style="CURSOR: pointer" data="93426" class="copybut" id="copybut93426" onclick="doCopy('code93426')"><u>复制代码</u></a></span> 代码如下:</div> <div class="codebody" id="code93426"> <br>var systemBackup = $("#field_systemBackup").is(":checked"); <br> </div> <br>选中返回true, 未选中返回false