<view class="form-field dis-flex flex-y-center">
              <view class="field-label">手机号：</view>
              <view class="field-input flex-box">
                <input name="mobile" placeholder="请输入手机号" value="{{mobile}}"></input>
              </view>
            </view>
            <view class="form-field dis-flex flex-y-center">
              <view class="field-label">短信验证码：</view>
              <view class="field-input flex-box">
                <input name="sms-code" placeholder="请输入短信验证码" style="float:left;width:230rpx"></input>
                <label style="float:right;margin-top:12rpx;color:#006400;pointer-events: {{isDisabled}};" bindtap="getcode">{{codetime}}</label>
              </view>
            </view>

//获取验证码

getcode:function(){

mobile = ？这里怎么获取到手机字段的值呢，dom不行，这下有点尴尬。

}