mui开发中获取单选按钮、复选框的值(实例讲解)

function getVals(){
 var res = getRadioRes('rds');
 if(res == null){mui.toast('请选择'); return;}
 mui.toast(res);
}
function getRadioRes(className){
 var rdsObj = document.getElementsByClassName(className);
 var checkVal = null;
 for(i = 0; i < rdsObj.length; i++){
  if(rdsObj[i].checked){checkVal = rdsObj[i].value;}
 }
 return checkVal;
}

function getVals(){
 var res = getCheckBoxRes('rds');
 if(res.length < 1){
  mui.toast('请选择');
  return;
 }
 mui.toast(res);
}
function getCheckBoxRes(className){
 var rdsObj = document.getElementsByClassName(className);
 var checkVal = new Array();
 var k  = 0;
 for(i = 0; i < rdsObj.length; i++){
  if(rdsObj[i].checked){
   checkVal[k] = rdsObj[i].value;
   k++;
  }
 }
 return checkVal;
}