若组件内的内容都通过wx:for渲染的，则初始化的scroll-left无效。 

<scroll-view class="items" scroll-x="true" style="width:100%" scroll-left="305">

             <view class="row">

                <view wx:for="{{array}}">{{item}}</view>

            </view>

 </scroll-view>

若内容都是静态初始化，则scroll-left有效

<scroll-view class="items" scroll-x="true" style="width:100%" scroll-left="305">

             <view class="row">

                    <view>1</view>

                     <view>2</view>

                     <view>3</view>

                    ...

            </view>

 </scroll-view>