【vue3.0】4.0 某东到家(四)——搜索栏、广告位横幅和分类菜单

目前src/App.vue代码如下:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
  </div>
  <div class="docker">
    <span class="docker__item docker__item--active">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-home"></i>
      </div>
      <div class="docker__item__title">首页</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-shopping"></i>
      </div>
      <div class="docker__item__title">购物车</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-order"></i>
      </div>
      <div class="docker__item__title">订单</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-my"></i>
      </div>
      <div class="docker__item__title">我的</div>
    </span>
  </div>
  <router-view />
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0.5rem;
  right: 0;
  padding: 0 0.18rem;
}
.position {
  //文字显示省略号配置
  @include ellipsis;
  // 其他一般设定
  position: relative;
  padding: 0.16rem 0.24rem 0.16rem 0;
  line-height: 0.22rem;
  font-size: 0.16rem;
  color: $content-font-color;
  .position__icon {
    position: relative;
    top: 0.01rem;
    font-size: 0.2rem;
    margin-right: 0.08rem;
  }
  .position__notice {
    top: 0.17rem;
    right: 0;
    position: absolute;
    font-size: 0.2rem;
  }
}
.docker {
  color: $content-font-color;
  display: flex; //自适应均赠,弹性盒子
  position: absolute; //绝对定位
  box-sizing: border-box; //这个会以body的最外层作为容器的最外层
  padding: 0 0.18rem;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 0.49rem;
  border-top: 1px solid #f1f1f1;
  &__item {
    flex: 1;
    text-align: center;
    &--active {
      color: #1fa4fc;
    }
    &_icon {
      margin: 0.05rem 0 0.02rem 0; //图标距离上边距7px左右;
      font-size: 0.18rem;
    }
    &__title {
      //浏览器最小像素是12px,如果想表达12px以下大小得如下编写
      font-size: 0.12rem;
      transform: scale(0.5 0.5); //横向缩小50% 纵向搜小50%
      transform-origin: center top; //缩放的中心点
    }
  }
}
</style>

搜索栏

增加一个装搜索栏的盒子

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      黄焖鸡米饭
    </div>
  </div>
......
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
......
}
......
.position {
......
}
.search {
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;

}
.docker {
......
}
</style>
image.png

继续优化,去iconfont准备一个搜索按钮的图标:


image.png
<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span> <i class="custom-icon custom-icon-search"></i> </span>
      黄焖鸡米饭
    </div>
  </div>
......
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
......
}
.position {
......
}
.search {
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;
  border-radius: 0.16rem;
  font-size: 0.14rem;
}
......
</style>
image.png

微调css样式:

.search {
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;
  border-radius: 0.16rem;
  font-size: 0.14rem;
  .custom-icon{
    display: inline-block;
    padding: 0 0.05rem 0 0.16rem;
    font-size: 0.16rem;
  }
}

image.png

目前来看效果达到了,但其实文字黄焖鸡米饭是没有做限制的,比如垂直居中(现在的效果只是刚刚好,没有走样,但无法保证)。
优化一下:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon"> <i class="custom-icon custom-icon-search"></i> </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
  </div>
......
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
......
}
.position {
......
}

.search {
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;
  border-radius: 0.16rem;
  font-size: 0.14rem;
  &__icon {
    display: inline-block;
    padding: 0 0.05rem 0 0.16rem;
    font-size: 0.15rem;
  }
  &__text {
    display: inline-block;
    font-size: 0.14rem;
  }
}
......
</style>

广告位横幅

准备一张图片,放到public\i18n\9_16\img\banner.jpg

banner.jpg

修改 src/App.vue:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon"> <i class="custom-icon custom-icon-search"></i> </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <div class="banner">
      <img src="/i18n/9_16/img/banner.jpg"/>
    </div>
  </div>
<style>
......
</template>

<style lang="scss">
......
.search {
  margin-bottom: 0.12rem;
......
}
......
</style>
image.png

很明显图片太大,优化:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon">
        <i class="custom-icon custom-icon-search"></i>
      </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <div class="banner">
      <img class="banner__img" src="/i18n/9_16/img/banner.jpg" />
    </div>
  </div>
......
</template>

<style lang="scss">
......
.search {
......
}
.banner {
  &__img {
    width: 100%;
  }
}
......
</style>

image.png

这样写效果就达到了,但是这里图片加载的时候会有一个抖动,可以模拟观察一下,fast-3G是一个模拟慢网速的情况下网页的访问:
GIF.gif

这里还不明显,当图片加载前后,图片下面的内容会被挤下去,这就是抖动
解决技巧:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon">
        <i class="custom-icon custom-icon-search"></i>
      </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <div class="banner">
      <img class="banner__img" src="/i18n/9_16/img/banner.jpg" />
    </div>
    <div>123123123</div>
  </div>
......
</template>

<style lang="scss">
......
.search {
......
}

.banner {
  height: 0%;
  overflow: hidden;
  padding-bottom: 25%; //屏幕宽度的25%
  &__img {
    width: 100%;
  }
}
......
</style>

GIF.gif

到此为止,src/App.vue的完整代码如下:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon">
        <i class="custom-icon custom-icon-search"></i>
      </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <div class="banner">
      <img class="banner__img" src="/i18n/9_16/img/banner.jpg" />
    </div>
  </div>
  <div class="docker">
    <span class="docker__item docker__item--active">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-home"></i>
      </div>
      <div class="docker__item__title">首页</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-shopping"></i>
      </div>
      <div class="docker__item__title">购物车</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-order"></i>
      </div>
      <div class="docker__item__title">订单</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-my"></i>
      </div>
      <div class="docker__item__title">我的</div>
    </span>
  </div>
  <router-view />
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0.5rem;
  right: 0;
  padding: 0 0.18rem;
}
.position {
  //文字显示省略号配置
  @include ellipsis;
  // 其他一般设定
  position: relative;
  padding: 0.16rem 0.24rem 0.16rem 0;
  line-height: 0.22rem;
  font-size: 0.16rem;
  color: $content-font-color;
  .position__icon {
    position: relative;
    top: 0.01rem;
    font-size: 0.2rem;
    margin-right: 0.08rem;
  }
  .position__notice {
    top: 0.17rem;
    right: 0;
    position: absolute;
    font-size: 0.2rem;
  }
}

.search {
  margin-bottom: 0.12rem;
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;
  border-radius: 0.16rem;
  font-size: 0.14rem;
  &__icon {
    display: inline-block;
    padding: 0 0.05rem 0 0.16rem;
    font-size: 0.15rem;
  }
  &__text {
    display: inline-block;
    font-size: 0.14rem;
  }
}
.banner {
  height: 0%;
  overflow: hidden;
  padding-bottom: 25%; //屏幕宽度的25%
  &__img {
    width: 100%;
  }
}
.docker {
  color: $content-font-color;
  display: flex; //自适应均赠,弹性盒子
  position: absolute; //绝对定位
  box-sizing: border-box; //这个会以body的最外层作为容器的最外层
  padding: 0 0.18rem;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 0.49rem;
  border-top: 1px solid #f1f1f1;
  &__item {
    flex: 1;
    text-align: center;
    &--active {
      color: #1fa4fc;
    }
    &_icon {
      margin: 0.05rem 0 0.02rem 0; //图标距离上边距7px左右;
      font-size: 0.18rem;
    }
    &__title {
      //浏览器最小像素是12px,如果想表达12px以下大小得如下编写
      font-size: 0.12rem;
      transform: scale(0.5 0.5); //横向缩小50% 纵向搜小50%
      transform-origin: center top; //缩放的中心点
    }
  }
}
</style>

分类菜单

首先准备一下图片:

1 2 3 4 5
签到.png
水果店.png
鲜花.png
医药健康.png
菜市场.png
6 7 8 9 10
超市.png
大牌免运.png
蛋糕.png
红包.png
家居.png

将图片放至/i18n/9_16/img/category_list文件夹下:

<template>
  <div class="wrapper">
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <div class="search">
      <span class="search__icon">
        <i class="custom-icon custom-icon-search"></i>
      </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <div class="banner">
      <img class="banner__img" src="/i18n/9_16/img/banner.jpg" />
    </div>
    <div class="category_list">
      <!-- 10个 -->
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/超市.png"/>
        <p class="category_list__item__desc">超市便利</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/菜市场.png" />
        <p class="category_list__item__desc">菜市场</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/水果店.png" />
        <p class="category_list__item__desc">水果店</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/鲜花.png" />
        <p class="category_list__item__desc">鲜花绿植</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/医药健康.png" />
        <p class="category_list__item__desc">医药健康</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/家居.png" />
        <p class="category_list__item__desc">家居时尚</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/蛋糕.png" />
        <p class="category_list__item__desc">烘焙蛋糕</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/签到.png" />
        <p class="category_list__item__desc">签到</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/大牌免运.png" />
        <p class="category_list__item__desc">大牌免运</p>
      </div>
      <div class="category_list__item">
        <img class="category_list__item__img" src="/i18n/9_16/img/category_list/红包.png" />
        <p class="category_list__item__desc">红包套餐</p>
      </div>
    </div>
  </div>
......
</template>

效果如下:


image.png

调整一下css:


<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
......
}
.position {
......
}

.search {
......
}
.banner {
......
}
.category_list {
  display: flex; //flex布局
  &__item {
    width: 20%;
  }
}
.docker {
......
}
</style>

image.png

修改css属性:

.category_list {
  display: flex; //flex布局:弹性盒
  flex-wrap: wrap;//让弹性盒元素在必要的时候拆行
  &__item {
    width: 20%;
  }
}
image.png

细节优化:

.category_list {
  display: flex; //flex布局:弹性盒
  flex-wrap: wrap;//让弹性盒元素在必要的时候拆行
  &__item {
    width: 20%;
    &__img{
      display: block;
      width: 0.4rem;
      height: 0.4rem;
      margin: 0 auto;
    }
  }
}
image.png

再进行位置微调细化:

.category_list {
  display: flex; //flex布局:弹性盒
  flex-wrap: wrap; //让弹性盒元素在必要的时候拆行
  margin-top: 0.16rem;
  &__item {
    width: 20%;
    &__img {
      display: block;
      width: 0.4rem;
      height: 0.4rem;
      margin: 0 auto;
    }
    &__desc {
      margin: 0.06rem 0 0.16rem 0;
      text-align: center;
      color: $content-font-color;
    }
  }
}
image.png

底部增加一个灰色空白区域:

<template>
  <!-- 主体内容容器 -->
  <div class="wrapper">
......
    </div>
    <!-- 搜索栏 -->
    <div class="search">
    ......
    </div>
    <!-- 横幅广告推广栏 -->
    <div class="banner">
......
    </div>
    <!-- 分类列表栏 -->
    <div class="category_list">
   ......
    </div>
    <!-- 灰色留白分隔栏 -->
    <div class="gap"></div>
  </div>
.....
</template>

<style lang="scss">
.gap {
  height: 0.1rem;
  background:#f1f1f1;
}
......
</style>

image.png

现在这样的灰色留办由于wrapper的padding留白,没有顶格,而我们需要顶格的效果,修改如下:

.gap {
  height: 0.1rem;
  background: #f1f1f1;
  margin: 0 -0.18rem;
}

给margin往外去撑即可解决。

image.png

到此为止#f1f1f1这个颜色出现2次了,而且可见的知道这个灰色会很常用,所以可以把这个颜色抽取出来,方便复用。
修改src\style\viriables.scss

/**
* 内容主体文字颜色
**/
$content-font-color: #333;
/**
* 无内容、背景灰、留白灰的颜色
**/
$content-bg-color: #f1f1f1;

到此为止,完整代码如下:
src/App.vue:

<template>
  <!-- 主体内容容器 -->
  <div class="wrapper">
    <!-- 顶部位置信息、通知栏 -->
    <div class="position">
      <span>
        <i class="position__icon custom-icon custom-icon-position"></i>
      </span>
      西安交通大学兴庆校区梧桐苑食堂北侧小院子放台阶上
      <i class="position__notice custom-icon custom-icon-bell"></i>
    </div>
    <!-- 搜索栏 -->
    <div class="search">
      <span class="search__icon">
        <i class="custom-icon custom-icon-search"></i>
      </span>
      <span class="search__text"> 黄焖鸡米饭</span>
    </div>
    <!-- 横幅广告推广栏 -->
    <div class="banner">
      <img class="banner__img" src="/i18n/9_16/img/banner.jpg" />
    </div>
    <!-- 分类列表栏 -->
    <div class="category_list">
      <!-- 10个 -->
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/超市.png"
        />
        <p class="category_list__item__desc">超市便利</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/菜市场.png"
        />
        <p class="category_list__item__desc">菜市场</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/水果店.png"
        />
        <p class="category_list__item__desc">水果店</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/鲜花.png"
        />
        <p class="category_list__item__desc">鲜花绿植</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/医药健康.png"
        />
        <p class="category_list__item__desc">医药健康</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/家居.png"
        />
        <p class="category_list__item__desc">家居时尚</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/蛋糕.png"
        />
        <p class="category_list__item__desc">烘焙蛋糕</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/签到.png"
        />
        <p class="category_list__item__desc">签到</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/大牌免运.png"
        />
        <p class="category_list__item__desc">大牌免运</p>
      </div>
      <div class="category_list__item">
        <img
          class="category_list__item__img"
          src="/i18n/9_16/img/category_list/红包.png"
        />
        <p class="category_list__item__desc">红包套餐</p>
      </div>
    </div>
    <!-- 灰色留白分隔栏 -->
    <div class="gap"></div>
  </div>
  <!-- 底部主菜单容器 -->
  <div class="docker">
    <span class="docker__item docker__item--active">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-home"></i>
      </div>
      <div class="docker__item__title">首页</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-shopping"></i>
      </div>
      <div class="docker__item__title">购物车</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-order"></i>
      </div>
      <div class="docker__item__title">订单</div>
    </span>
    <span class="docker__item ">
      <div class="docker__item_icon">
        <i class="custom-icon custom-icon-my"></i>
      </div>
      <div class="docker__item__title">我的</div>
    </span>
  </div>
  <router-view />
</template>

<style lang="scss">
@import './style/viriables';
@import './style/mixins';
.wrapper {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0.5rem;
  right: 0;
  padding: 0 0.18rem;
}
.position {
  //文字显示省略号配置
  @include ellipsis;
  // 其他一般设定
  position: relative;
  padding: 0.16rem 0.24rem 0.16rem 0;
  line-height: 0.22rem;
  font-size: 0.16rem;
  color: $content-font-color;
  .position__icon {
    position: relative;
    top: 0.01rem;
    font-size: 0.2rem;
    margin-right: 0.08rem;
  }
  .position__notice {
    top: 0.17rem;
    right: 0;
    position: absolute;
    font-size: 0.2rem;
  }
}

.search {
  margin-bottom: 0.12rem;
  line-height: 0.32rem; //行高:将会自动撑开
  background: #f5f5f5;
  color: #b7b7b7;
  border-radius: 0.16rem;
  font-size: 0.14rem;
  &__icon {
    display: inline-block;
    padding: 0 0.05rem 0 0.16rem;
    font-size: 0.15rem;
  }
  &__text {
    display: inline-block;
    font-size: 0.14rem;
  }
}
.banner {
  height: 0%;
  overflow: hidden;
  padding-bottom: 25%; //屏幕宽度的25%
  &__img {
    width: 100%;
  }
}
.category_list {
  display: flex; //flex布局:弹性盒
  flex-wrap: wrap; //让弹性盒元素在必要的时候拆行
  margin-top: 0.16rem;
  &__item {
    width: 20%;
    &__img {
      display: block;
      width: 0.4rem;
      height: 0.4rem;
      margin: 0 auto;
    }
    &__desc {
      margin: 0.06rem 0 0.16rem 0;
      text-align: center;
      color: $content-font-color;
    }
  }
}
.gap {
  height: 0.1rem;
  background: $content-bg-color;
  margin: 0 -0.18rem;
}
.docker {
  color: $content-font-color;
  display: flex; //自适应均赠,弹性盒子
  position: absolute; //绝对定位
  box-sizing: border-box; //这个会以body的最外层作为容器的最外层
  padding: 0 0.18rem;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 0.49rem;
  border-top: 1px solid $content-bg-color;
  &__item {
    flex: 1;
    text-align: center;
    &--active {
      color: #1fa4fc;
    }
    &_icon {
      margin: 0.05rem 0 0.02rem 0; //图标距离上边距7px左右;
      font-size: 0.18rem;
    }
    &__title {
      //浏览器最小像素是12px,如果想表达12px以下大小得如下编写
      font-size: 0.12rem;
      transform: scale(0.5 0.5); //横向缩小50% 纵向搜小50%
      transform-origin: center top; //缩放的中心点
    }
  }
}
</style>

最终效果如下:


image.png

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