uView修改value自定义Select 列选择器

               let list = res.data
                let arr = [];
                //替换属性
                   list.forEach( (item, index) => {
                       var object = {};
                       object.label = item.classdata; // 展示label
                       object.value = item.classdata; // value
                       //object.extra = res.data[i].dictCode; // 传递额外的参数
                       arr.push(object);
                   })
                   this.options = arr;
                  console.log(this.options)