<template> 
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    <view class="u-section"> 
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        <view class="u-section__title" :style="{ 
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            fontWeight: bold ? 'bold' : 'normal', 
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            color: color, 
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            fontSize: fontSize + 'rpx', 
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            paddingLeft: showLine ? (fontSize * 0.7) + 'rpx' : 0 
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        }" :class="{ 
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            'u-section--line': showLine 
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        }"> 
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            <view class="u-section__title__icon-wrap u-flex" :style="[lineStyle]" v-if="showLine"> 
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                <u-icon top="0" name="column-line" :size="fontSize * 1.25" bold :color="lineColor ? lineColor : color"></u-icon> 
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            </view> 
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            <text class="u-flex u-section__title__text">{{title}}</text> 
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        </view> 
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        <view class="u-section__right-info" v-if="right || $slots.right" :style="{ 
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            color: subColor 
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        }" @tap="rightClick">  
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            <slot name="right" v-if="$slots.right" /> 
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            <block v-else> 
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                {{subTitle}} 
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                <view class="u-section__right-info__icon-arrow u-flex" v-if="arrow"> 
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                    <u-icon name="arrow-right" size="24" :color="subColor"></u-icon> 
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                </view> 
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            </block> 
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        </view> 
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    </view> 
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</template> 
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<script> 
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    /** 
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     * section 查看更多 
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     * @description 该组件一般用于分类信息有很多,但是限于篇幅只能列出一部分,让用户通过"查看更多"获得更多信息的场景,实际效果见演示。 
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     * @tutorial https://www.uviewui.com/components/section.html 
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     * @property {String} title 左边主标题 
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     * @property {String} sub-title 右边副标题(默认更多) 
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     * @property {Boolean} right 是否显示右边的内容(默认true) 
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     * @property {Boolean} showLine 是否显示左边的竖条(默认true) 
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     * @property {Boolean} arrow 是否显示右边箭头(默认true) 
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     * @property {String Number} font-size 主标题的字体大小(默认28) 
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     * @property {Boolean} bold 主标题是否加粗(默认true) 
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     * @property {String} color 主标题颜色(默认#303133) 
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     * @event {Function} click 组件右侧的内容被点击时触发,用于跳转"更多" 
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     * @example <u-section title="今日热门" :right="false"></u-section> 
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     */ 
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    export default { 
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        name: "u-section", 
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        props: { 
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            // 标题信息 
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            title: { 
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                type: String, 
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                default: '' 
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            }, 
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            // 右边副标题内容 
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            subTitle: { 
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                type: String, 
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                default: '更多' 
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            }, 
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            // 是否显示右边的内容 
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            right: { 
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                type: Boolean, 
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                default: true 
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            }, 
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            fontSize: { 
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                type: [Number, String], 
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                default: 28 
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            }, 
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            // 主标题是否加粗 
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            bold: { 
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                type: Boolean, 
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                default: true 
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            }, 
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            // 主标题的颜色 
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            color: { 
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                type: String, 
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                default: '#303133' 
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            }, 
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            // 右边副标题的颜色 
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            subColor: { 
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                type: String, 
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                default: '#909399' 
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            }, 
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            // 是否显示左边的竖条 
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            showLine: { 
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                type: Boolean, 
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                default: true 
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            }, 
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            // 左边竖线的颜色 
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            lineColor: { 
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                type: String, 
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                default: '' 
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            }, 
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            // 是否显示右边箭头 
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            arrow: { 
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                type: Boolean, 
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                default: true 
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            }, 
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        }, 
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        computed: { 
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            // 左边竖条的样式 
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            lineStyle() { 
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                // 由于安卓和iOS的,需要稍微调整绝对定位的top值,才能让左边的竖线和右边的文字垂直居中 
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                return { 
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                    // 由于竖线为字体图标,具有比实际线宽更宽的宽度,所以也需要根据字体打下动态调整 
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                    left: -(Number(this.fontSize) * 0.9) + 'rpx', 
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                    top: -(Number(this.fontSize) * (this.$u.os() == 'ios' ? 0.14 : 0.15)) + 'rpx', 
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                } 
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            } 
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        }, 
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        methods: { 
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            rightClick() { 
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                this.$emit('click'); 
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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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    @import "../../libs/css/style.components.scss"; 
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    .u-section { 
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        @include vue-flex; 
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        justify-content: space-between; 
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        align-items: center; 
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        width: 100%; 
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        &__title { 
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            position: relative; 
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            font-size: 28rpx; 
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            padding-left: 20rpx; 
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            @include vue-flex; 
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            align-items: center; 
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            &__icon-wrap { 
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                position: absolute; 
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            } 
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            &__text { 
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                line-height: 1; 
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            } 
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        } 
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        &__right-info { 
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            color: $u-tips-color; 
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            font-size: 26rpx; 
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            @include vue-flex; 
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            align-items: center; 
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            &__icon-arrow { 
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                margin-left: 6rpx; 
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            } 
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        } 
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    } 
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</style> 
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