function isEmpty(obj){
    if(typeof obj == "undefined" || obj == null || obj == ""){
        return true;
    }else{
        return false;
    }
}

// 导出Excel
function dc() {
	var title = $("#title").text();
	var year = $("#year").val() ;
	var myDate = new Date(); 
	
	alert(countdown()+year+"_"+title);
	$("#add").tableExport({fileName: countdown()+year+"_"+title,type:"xlsx",escape:"false"});
	
}
function countdown() {
    var myDate = new Date();
      //获取当前年
      var year=myDate.getFullYear();
      //获取当前月
      var month=myDate.getMonth()+1;
      //获取当前日
      var date=myDate.getDate(); 
      var h=myDate.getHours();       //获取当前小时数(0-23)
      var m=myDate.getMinutes();     //获取当前分钟数(0-59)
      var s=myDate.getSeconds();  
      var now=year+getNow(month)+getNow(date)+getNow(h)+getNow(m)+getNow(s);
      // 赋值给展示时间
     // $('#Times').html('系统时钟：'+now);
		return now;
}
// 获取当前时间
function getNow(s) {
  return s < 10 ? '0' + s: s;
}