复选框的选择与赋值

                     <td class="lable"><span class="red"></span>优秀党员评选年份</td> 
     <td colspan="2">
         <div id="checkboxWrapper"></div>
      </td>  

    //优秀党员评选年份
var str = '';
var risencpExcellentstaff = "${result.risencpExcellentstaff!''}";
risencpExcellentstaff = risencpExcellentstaff.split(',');//已经勾选的数据数组
//var risencpExcellentstaff1 =['2015','2016','2017','2018','2019','2020'];
var risencpExcellentstaff1=new Array("2015","2016","2017","2018","2019","2020");
var num = risencpExcellentstaff.length;
if(num==1){
if(risencpExcellentstaff1[0].trim()==""){
num=0;
}
}
var num1=1;
for(var i=0; i<risencpExcellentstaff1.length; i++) {
var year = risencpExcellentstaff1[i].trim();
var years ="";
if(num>0&&(num>num1 || num==num1)){
years = risencpExcellentstaff[num1-1].trim();
}
if(year==years){
num1++;
str += '<input type="checkbox" lay-skin="primary" name="risencpExcellentstaff" title="'+year+'" value="'+year+'" checked="checked">';
}else{
str += '<input type="checkbox" lay-skin="primary" name="risencpExcellentstaff" value="'+year+'" title="'+year+'">';
}
    }
$('#checkboxWrapper').html(str);