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jquery determines whether checkbox is empty

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Release: 2016-08-04 08:53:36
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//导出excel数据 $("#export").click(function () { if($(".list input[name='stuid[]']:checked").size()==0){ alert("请先勾选学生信息,再做导出操作!"); return false; } else { $(".sendform").attr({action: "./export.php?do=export", method: "post"}); $('.sendform').submit(); } });
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