js中switch case循环一例

switch (objNameType) {
        case 'PD':
            valueUD = obj.id;
            id = objName;
            var loadVUD = UserData.load(exam, id);
            if (loadVUD == null || loadVUD == undefined || loadVUD == '') {
                var tmpTGId = obj.id.substr(0, obj.id.indexOf('_'));
                qNoTotalD[qIdNoStr[tmpTGId]]++;
            }
            break;
  case 'DANX':
            valueUD = obj.id;
   var objName = obj.name;
   var objNameTop = objName.substr(0,objName.indexOf('_'));
            id = objName;
            var loadVUD = UserData.load(exam, id);
            if (loadVUD == null || loadVUD == undefined || loadVUD == '') {
                var tmpTGId = obj.id.substr(0, obj.id.indexOf('_'));
                qNoTotalD[qIdNoStr[tmpTGId]]++;
            }
            break;
  case 'PP':
            valueUD = obj.id;
   var objName = obj.name;
   var objNameTop = objName.substr(0,objName.indexOf('_'));
            id = objName;
            var loadVUD = UserData.load(exam, id);
            if (loadVUD == null || loadVUD == undefined || loadVUD == '') {
                var tmpTGId = obj.id.substr(0, obj.id.indexOf('_'));
                qNoTotalD[qIdNoStr[tmpTGId]]++;
            }
            break;
        case 'text':
            valueUD = obj.value;
            id = "text_" + obj.id;
            var loadVUD = UserData.load(exam, id);
            if (loadVUD == null) {
                if (valueUD == null || valueUD == '') {
                    return;
                }
                else {