zhangxiaoxu123456
2021-12-20 301289e539c417995f95f5cb91fd1f6043bb7cfd
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<template>
    <view class="u-demo">
        <view class="u-demo-wrap">
            <view class="u-demo-title">演示效果</view>
            <view class="u-demo-area">
                <u-read-more @open="open" @close="close" :toggle="toggle" :show-height="showHeight" ref="uReadMore">
                    <!-- u-parse组件在微信小程序渲染慢,支付宝小程序rich-text不支持nodes属性 -->
                    <!-- #ifdef MP-ALIPAY -->
                    <u-parse :html="content"></u-parse>
                    <!-- #endif -->
                    <!-- #ifndef MP-ALIPAY -->
                    <rich-text :nodes="content"></rich-text>
                    <!-- #endif -->
                </u-read-more>
            </view>
        </view>
        <view class="u-config-wrap">
            <view class="u-config-title u-border-bottom">
                参数配置
            </view>
            <view class="u-config-item">
                <view class="u-item-title">超出高度隐藏</view>
                <u-subsection current="1"  :list="['100', '200', '400']" @change="showHeightChange"></u-subsection>
            </view>
            <view class="u-config-item">
                <view class="u-item-title">展开后可关闭</view>
                <u-subsection current="1" :list="['是', '否']" @change="toggleChange"></u-subsection>
            </view>
        </view>
    </view>
</template>
 
<script> 
    export default {
        data() {
            return {
                content: `浔阳江头夜送客,枫叶荻花秋瑟瑟。主人下马客在船,举酒欲饮无管弦。醉不成欢惨将别,别时茫茫江浸月。
                    忽闻水上琵琶声,主人忘归客不发。寻声暗问弹者谁,琵琶声停欲语迟。移船相近邀相见,添酒回灯重开宴。千呼万唤始出来,犹抱琵琶半遮面。转轴拨弦三两声,未成曲调先有情。弦弦掩抑声声思,似诉平生不得志。低眉信手续续弹,说尽心中无限事。轻拢慢捻抹复挑,初为《霓裳》后《六幺》。大弦嘈嘈如急雨,小弦切切如私语。嘈嘈切切错杂弹,大珠小珠落玉盘。间关莺语花底滑,幽咽泉流冰下难。冰泉冷涩弦凝绝,凝绝不通声暂歇。别有幽愁暗恨生,此时无声胜有声。银瓶乍破水浆迸,铁骑突出刀枪鸣。曲终收拨当心画,四弦一声如裂帛。东船西舫悄无言,唯见江心秋月白。
                    沉吟放拨插弦中,整顿衣裳起敛容。自言本是京城女,家在虾蟆陵下住。十三学得琵琶成,名属教坊第一部。曲罢曾教善才服,妆成每被秋娘妒。五陵年少争缠头,一曲红绡不知数。钿头银篦击节碎,血色罗裙翻酒污。今年欢笑复明年,秋月春风等闲度。弟走从军阿姨死,暮去朝来颜色故。门前冷落鞍马稀,老大嫁作商人妇。商人重利轻别离,前月浮梁买茶去。去来江口守空船,绕船月明江水寒。夜深忽梦少年事,梦啼妆泪红阑干。
                    我闻琵琶已叹息,又闻此语重唧唧。同是天涯沦落人,相逢何必曾相识!我从去年辞帝京,谪居卧病浔阳城。浔阳地僻无音乐,终岁不闻丝竹声。住近湓江地低湿,黄芦苦竹绕宅生。其间旦暮闻何物?杜鹃啼血猿哀鸣。春江花朝秋月夜,往往取酒还独倾。岂无山歌与村笛?呕哑嘲哳难为听。今夜闻君琵琶语,如听仙乐耳暂明。莫辞更坐弹一曲,为君翻作《琵琶行》。感我此言良久立,却坐促弦弦转急。凄凄不似向前声,满座重闻皆掩泣。座中泣下谁最多?江州司马青衫湿。`,
                showHeight: 200,
                toggle: false,
            }
        },
        methods: {
            showHeightChange(index) {
                this.showHeight = index == 0 ? 100 : index == 1 ? 200 : 400;
            },
            toggleChange(index) {
                this.toggle = index == 0 ? true : false;
            },
            open() {
                // console.log('open');
            },
            close() {
                // console.log('close');
            }
        }
    }
</script>
 
<style lang="scss" scoped>
    // 通过/deep/样式穿透去控制组件的内容
    .wrap /deep/ .u-content {
        color: #666!important;
    }
</style>