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<template>
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<view class="waterfalls-box" :style="{ height: height + 'px' }">
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<!-- #ifdef MP-WEIXIN -->
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<view
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v-for="(item, index) of list"
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class="waterfalls-list"
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:key="item[idKey]"
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:id="'waterfalls-list-id-' + item[idKey]"
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:ref="'waterfalls-list-id-' + item[idKey]"
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:style="{
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'--offset': offset + 'px',
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'--cols': cols,
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top: allPositionArr[index].top || 0,
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left: allPositionArr[index].left || 0,
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}"
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@click="$emit('wapper-lick', item)"
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>
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<image
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class="waterfalls-list-image"
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mode="widthFix"
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:class="{ single }"
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:style="imageStyle"
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:src="item[imageSrcKey] || ' '"
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@load="imageLoadHandle(index)"
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@error="imageLoadHandle(index)"
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@click="$emit('image-click', item)"
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/>
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</view>
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<!-- #endif -->
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<!-- #ifndef MP-WEIXIN -->
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<view
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v-for="(item, index) of list"
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class="waterfalls-list"
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:key="item[idKey]"
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:id="'waterfalls-list-id-' + item[idKey]"
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:ref="'waterfalls-list-id-' + item[idKey]"
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:style="{
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'--offset': offset + 'px',
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'--cols': cols,
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...listStyle,
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...(allPositionArr[index] || {}),
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}"
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@click="$emit('wapper-lick', item)"
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>
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<image
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class="waterfalls-list-image"
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:class="{ single }"
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mode="widthFix"
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:style="imageStyle"
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:src="item.image || ' '"
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@load="imageLoadHandle(index)"
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@error="imageLoadHandle(index)"
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@click="$emit('image-click', item)"
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/>
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<view class="userInfo" @click="$emit('user-lick', item)" :style="{height: listType != 'mainAct' ? '90rpx' : '60rpx'}">
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<view class="userDesc">
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{{item.title}}
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</view>
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<view class="userIconLike" v-if="listType != 'mainAct'">
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<view class="userIcon">
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<image :src="item.user.avatar" mode=""></image>
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{{item.user.nickname}}
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</view>
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<view class="likeNum">
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<image src="../../static/image/dianzan2.png" mode=""></image>
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{{item.like_num}}
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</view>
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</view>
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</view>
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<view class="statusTxt" v-if="listType == 'findPlay' && item.switch == '1'">
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精选
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</view>
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<view class="statusTxt" v-if="listType == 'mainAct'">
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{{item.state_text}}
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</view>
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<!-- "check_status": 审核状态:0=审核中,1=已通过,2=未通过 -->
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<view class="statusTxt" v-if="listType == 'myStory' && item.check_status != '1'">
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{{item.check_status == '0' ? '审核中' : '未通过'}}
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</view>
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</view>
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<!-- #endif -->
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</view>
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</template>
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<script>
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export default {
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props: {
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showStatus:{type: Boolean,default:false},
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list: { type: Array, required: true },
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listType:{ type: String},
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// offset 间距，单位为 px
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offset: { type: Number, default: 10 },
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// 列表渲染的 key 的键名，值必须唯一，默认为 id
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idKey: { type: String, default: "id" },
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// 图片 src 的键名
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imageSrcKey: { type: String, default: "image_url" },
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// 列数
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cols: { type: Number, default: 2, validator: (num) => num >= 2 },
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imageStyle: { type: Object },
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// 是否是单独的渲染图片的样子，只控制图片圆角而已
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single: { type: Boolean, default: false },
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// #ifndef MP-WEIXIN
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listStyle: { type: Object },
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// #endif
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},
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data() {
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return {
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topArr: [], // left, right 多个时依次表示第几列的数据
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allPositionArr: [], // 保存所有的位置信息
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allHeightArr: [], // 保存所有的 height 信息
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height: 0, // 外层包裹高度
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oldNum: 0,
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num: 0,
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};
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},
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created() {
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this.refresh();
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},
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methods: {
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imageLoadHandle(index) {
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const id = "waterfalls-list-id-" + this.list[index][this.idKey],
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query = uni.createSelectorQuery().in(this);
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query
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.select("#" + id)
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.fields({ size: true }, (data) => {
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this.num++;
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this.$set(this.allHeightArr, index, data.height);
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if(this.num === 1){
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uni.showLoading({
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title:'加载中...'
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})
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}
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if (this.num === this.list.length) {
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for (let i = this.oldNum; i < this.num; i++) {
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const getTopArrMsg = () => {
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let arrtmp = [...this.topArr].sort((a, b) => a - b);
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return {
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shorterIndex: this.topArr.indexOf(arrtmp[0]),
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shorterValue: arrtmp[0],
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longerIndex: this.topArr.indexOf(arrtmp[this.cols - 1]),
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longerValue: arrtmp[this.cols - 1],
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};
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};
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const { shorterIndex, shorterValue } = getTopArrMsg();
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const position = {
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top: shorterValue + "px",
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left: (data.width + this.offset) * shorterIndex + "px",
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};
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this.$set(this.allPositionArr, i, position);
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this.topArr[shorterIndex] =
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shorterValue + this.allHeightArr[i] + this.offset;
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this.height = getTopArrMsg().longerValue - this.offset;
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}
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this.oldNum = this.num;
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uni.hideLoading()
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// 完成渲染 emit `image-load` 事件
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this.$emit("image-load");
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}
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})
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.exec();
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},
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refresh() {
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let arr = [];
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for (let i = 0; i < this.cols; i++) {
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arr.push(0);
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}
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this.topArr = arr;
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this.num = 0;
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this.oldNum = 0;
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this.height = 0;
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},
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},
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};
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</script>
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<style lang="scss" scoped>
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// 这里可以自行配置
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$border-radius: 10px;
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.waterfalls-box {
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position: relative;
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width: 100%;
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overflow: hidden;
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.waterfalls-list {
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position: relative;
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width: calc((100% - var(--offset) * (var(--cols) - 1)) / var(--cols));
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position: absolute;
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background-color: #fff;
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border-radius: $border-radius;
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// 防止刚开始渲染时堆叠在第一幅图的地方
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left: calc(-50% - var(--offset));
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.waterfalls-list-image {
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width: 100%;
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will-change: transform;
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border-radius: $border-radius;
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display: block;
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&.single {
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border-radius: $border-radius;
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}
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}
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.userInfo{
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background: linear-gradient(135deg,rgba(0,0,0,0.00), rgba(0,0,0,0.60));
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border-radius: 0 0 $border-radius $border-radius;
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position:absolute;
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bottom: 0;
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width: 100%;
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.userDesc{
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font-size: 26rpx;
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color: #fff;
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padding: 0 24rpx;
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overflow: hidden;
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text-overflow: ellipsis;
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display: -webkit-box;
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-webkit-line-clamp:1;
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-webkit-box-orient:vertical;
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height: 45rpx;
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line-height: 45rpx;
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}
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.userIconLike{
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display: flex;
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justify-content: space-between;
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font-size: 20rpx;
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color: rgba(255,255,255,0.80);
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padding: 0 24rpx;
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.userIcon{
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display: flex;
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align-items: center;
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image{width: 38rpx;height: 38rpx;margin-right: 10rpx;border-radius: 100%;}
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}
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.likeNum{
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display: flex;
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align-items: center;
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image{width: 28rpx;height: 28rpx;margin-right: 5rpx;}
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}
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}
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}
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.statusTxt{
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width: 100rpx;
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height: 48rpx;
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background: rgba(0,53,46,0.50);
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text-align: center;
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line-height: 48rpx;
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font-size: 20rpx;
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color:#fff;
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position:absolute;
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top: 0;
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right: 0;
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border-radius: 0 $border-radius 0 0;
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}
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}
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}
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</style> |
