评论内容组件

基本样式 ：

<template>
  <van-cell class="comment-item">
    <van-image
      slot="icon"
      class="avatar"
      round
      fit="cover"
      src="https://img.yzcdn.cn/vant/cat.jpeg"
    />
    <div slot="title" class="title-wrap">
      <div class="user-name">用户名称</div>
      <van-button
        class="like-btn"
        icon="good-job-o"
      >赞</van-button>
    </div>

    <div slot="label">
      <p class="comment-content">这是评论内容</p>
      <div class="bottom-info">
        <span class="comment-pubdate">4天前</span>
        <van-button
          class="reply-btn"
          round
        >回复 0</van-button>
      </div>
    </div>
  </van-cell>
</template>

<script>
export default {
  name: 'CommentItem',
  props: {
    //每行的评论信息  
    comment: {
      type: Object,
      required: true
    }
  },
  methods: {}
}
</script>

<style scoped lang="less">
.comment-item {
  .avatar {
    width: 72px;
    height: 72px;
    margin-right: 25px;
  }
  .title-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    .user-name {
      color: #406599;
      font-size: 26px;
    }
  }
  .comment-content {
    font-size: 32px;
    color: #222222;
    word-break: break-all;
    text-align: justify;
  }
  .comment-pubdate {
    font-size: 19px;
    color: #222;
    margin-right: 25px;
  }
  .bottom-info {
    display: flex;
    align-items: center;
  }
  .reply-btn {
    width: 135px;
    height: 48px;
    line-height: 48px;
    font-size: 21px;
    color: #222;
  }
  .like-btn {
    height: 30px;
    padding: 0;
    border: none;
    font-size: 19px;
    line-height: 30px;
    margin-right: 7px;
    .van-icon {
      font-size: 30px;
    }   
  }
  .liked{
      background-color:orange;   
   }
}
</style>

添加动态评论，从评论组件list  ====》 单个评论组件item ，传值 item 是每个评论的信息 comment ；

and ：封装 2  个接口，给评论点赞和取消点赞的接口 ；

<template>
  <van-cell class="comment-item">
    <!-- 评论的头像 -->
    <van-image
      slot="icon"
      class="avatar"
      round
      fit="cover"
      :src="comment.aut_photo"
    />
    <div slot="title" class="title-wrap">
      <!-- 作者名字 -->
      <div class="user-name">{{ comment.aut_name }}</div>
      <!-- 点赞的处理逻辑 -->
      <van-button
        class="like-btn"
        :icon="comment.is_liking ? 'good-job' : 'good-job-o'"
        >{{ comment.is_liking ? "已赞" : "赞" }}</van-button
      >
    </div>

    <div slot="label">
      <!-- 评论的具体内容 -->
      <p class="comment-content">{{ comment.content }}</p>
      <div class="bottom-info">
        <!-- 评论的时间 -->
        <span class="comment-pubdate">{{ comment.pubdate | formatTime }}</span>
        <!-- 回复评论个数 -->
        <van-button class="reply-btn" round
          >回复 {{ comment.reply_count }}</van-button
        >
      </div>
    </div>
  </van-cell>
</template>

<script>
import { addCommentLikeApi, delCommentLikeApi } from "@/api/Article";
export default {
  name: "CommentItem",
  props: {
    //每行的评论信息
    comment: {
      type: Object,
      required: true,
    },
  },
  methods: {},
};
</script>

<style scoped lang="less">
.comment-item {
  .avatar {
    width: 72px;
    height: 72px;
    margin-right: 25px;
  }
  .title-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    .user-name {
      color: #406599;
      font-size: 26px;
    }
  }
  .comment-content {
    font-size: 32px;
    color: #222222;
    word-break: break-all;
    text-align: justify;
  }
  .comment-pubdate {
    font-size: 19px;
    color: #222;
    margin-right: 25px;
  }
  .bottom-info {
    display: flex;
    align-items: center;
  }
  .reply-btn {
    width: 135px;
    height: 48px;
    line-height: 48px;
    font-size: 21px;
    color: #222;
  }
  .like-btn {
    height: 30px;
    padding: 0;
    border: none;
    font-size: 19px;
    line-height: 30px;
    margin-right: 7px;
    .van-icon {
      font-size: 30px;
    }
  }
  .liked {
    background-color: orange;
  }
}
</style>

ps：视图更新，就是发送接口

调用接口点赞 和 取消点赞 ：

<template>
  <van-cell class="comment-item">
    <!-- 评论的头像 -->
    <van-image
      slot="icon"
      class="avatar"
      round
      fit="cover"
      :src="comment.aut_photo"
    />
    <div slot="title" class="title-wrap">
      <!-- 作者名字 -->
      <div class="user-name">{{ comment.aut_name }}</div>
      <!-- 点赞的处理逻辑 -->
      <van-button
        @click="clickHandler"
        :loading="isLoading"
        class="like-btn"
        :icon="comment.is_liking ? 'good-job' : 'good-job-o'"
        >{{ comment.is_liking ? "已赞" : "赞"
        }}{{ comment.like_count }}</van-button
      >
    </div>

    <div slot="label">
      <!-- 评论的具体内容 -->
      <p class="comment-content">{{ comment.content }}</p>
      <div class="bottom-info">
        <!-- 评论的时间 -->
        <span class="comment-pubdate">{{ comment.pubdate | formatTime }}</span>
        <!-- 回复评论个数 -->
        <van-button class="reply-btn" round
          >回复 {{ comment.reply_count }}</van-button
        >
      </div>
    </div>
  </van-cell>
</template>

<script>
import { addCommentLikeApi, delCommentLikeApi } from "@/api/Article";
export default {
  name: "CommentItem",
  props: {
    //每行的评论信息
    comment: {
      type: Object,
      required: true,
    },
  },
  data() {
    return {
      isLoading: false, // 节流阀
    };
  },
  methods: {
    async clickHandler() {
      // 判断是否登录，未登录不能点赞
      // 开始转圈圈，按钮不能点击了
      this.isLoading = true;
      if (!this.$store.state.user) return this.$toast.fail("登录才可以操作");
      try {
        if (this.comment.is_liking) {
          // 已点赞，取消点赞
          await delCommentLikeApi(this.comment.com_id);
          this.comment.like_count--;
        } else {
          // 未点赞就点赞
          await addCommentLikeApi({
            target: this.comment.com_id,
          });
          this.comment.like_count++;
        }
        // 视图更新（点赞按钮的颜色变化） 取反即可
        this.comment.is_liking = !this.comment.is_liking;
      } catch (error) {
        console.log(error);
      }
      // 结束转圈圈，按钮可以点击了
      this.isLoading = false;
    },
  },
};
</script>

<style scoped lang="less">
.comment-item {
  .avatar {
    width: 72px;
    height: 72px;
    margin-right: 25px;
  }
  .title-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    .user-name {
      color: #406599;
      font-size: 26px;
    }
  }
  .comment-content {
    font-size: 32px;
    color: #222222;
    word-break: break-all;
    text-align: justify;
  }
  .comment-pubdate {
    font-size: 19px;
    color: #222;
    margin-right: 25px;
  }
  .bottom-info {
    display: flex;
    align-items: center;
  }
  .reply-btn {
    width: 135px;
    height: 48px;
    line-height: 48px;
    font-size: 21px;
    color: #222;
  }
  .like-btn {
    height: 30px;
    padding: 0;
    border: none;
    font-size: 19px;
    line-height: 30px;
    margin-right: 7px;
    .van-icon {
      font-size: 30px;
    }
  }
  .liked {
    background-color: orange;
  }
}
</style>