303 lines
9.1 KiB
Vue
303 lines
9.1 KiB
Vue
<template>
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<div class="class-compopnents">
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<!-- 容器用于放置所有课程分类 -->
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<div class="class-container">
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<!-- 循环生成可拖拽的课程分类 -->
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<div
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v-for="(item, index) in classTypeList"
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class="class-type"
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:key="index"
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:style="{ 'background-color': item.color }"
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:draggable="item.draggable"
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@dragstart="onDragStart(index)"
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@dragover.prevent="() => onDragOver(index)"
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@dragend="onDragEnd"
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:class="{ dragging: draggingIndex === index }"
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>
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{{ item.name }}
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</div>
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</div>
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<div class="course-schedule-container">
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<table>
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<tbody>
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<tr v-for="(item, index) in classScheduleCardList" :key="index">
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<td
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v-for="(v, i) in item.courseList"
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:key="i"
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:parentIndex="index"
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@dragstart="e => tdDragStart(index, i, e)"
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@dragover.prevent="e => tdDragOver(index, i, e)"
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@dragleave="e => tdDragleave(index, i, e)"
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@dragend="e => tdDragend(index, i, e)"
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:draggable="v && v.draggable"
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:style="{
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'background-color': v ? v.color : '#fff',
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width: '150px',
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cursor: 'grab'
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}"
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>
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<div class="course-name">
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<span class="title notSelect">
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{{ v ? v.name : '' }}
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</span>
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<div class="remove" v-if="v" @click.stop="() => remove(index, i)">+</div>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</template>
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<script lang="ts" setup>
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import { ref } from 'vue'
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// 定义课程分类数据
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const classTypeList = ref([
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{ name: 'A1', color: '#8dedfb', draggable: true },
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{ name: 'A2', color: '#f1957b', draggable: true },
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{ name: 'A3', color: '#f6f1a9', draggable: true },
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{ name: 'A4', color: '#8cdb27', draggable: true },
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{ name: 'B1', color: '#d3dc28', draggable: true },
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{ name: 'B2', color: '#e5b46f', draggable: true },
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{ name: 'B3', color: '#656ef9', draggable: true },
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{ name: 'B4', color: '#f6efa1', draggable: true }
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])
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const classScheduleCardList = ref<any>([
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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},
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{
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courseList: [null, null]
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}
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])
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// 当前正在拖拽的元素索引
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const draggingIndex = ref<number | null>(null)
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// 拖拽开始：记录当前拖拽的索引
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function onDragStart(index: number) {
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draggingIndex.value = index
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}
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// 拖拽经过：动态调整拖拽顺序
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function onDragOver(targetIndex: number) {
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if (draggingIndex.value !== null && draggingIndex.value !== targetIndex) {
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// 拖拽元素和目标位置互换
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const draggedItem = classTypeList.value[draggingIndex.value]
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classTypeList.value.splice(draggingIndex.value, 1) // 移除拖拽的元素
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classTypeList.value.splice(targetIndex, 0, draggedItem) // 插入到目标位置
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draggingIndex.value = targetIndex // 更新拖拽元素的当前索引
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}
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}
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// 拖拽结束：清空拖拽状态
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function onDragEnd() {
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draggingIndex.value = null
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currentTDinfo.value = null
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processCourseData()
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}
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// 处理课程数据
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function processCourseData() {
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// 拖拽结束后, 将课程表进行处理,添加上 自定义删除的标识,避免其他元素移出后,将其置空
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const list = JSON.parse(JSON.stringify(classScheduleCardList.value))
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list.forEach((item: any) => {
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item.courseList.forEach((v: any) => {
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if (v) v.customDelete = true
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})
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})
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classScheduleCardList.value = list
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}
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// 拖拽中的 td 元素
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const dragingTdInfo = ref<any>(null)
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// 移动到的 td 信息
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const currentTDinfo = ref<any>(null)
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// td 中开始拖拽拖拽
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function tdDragStart(parentIndex: number, index: number, e: any) {
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// if (!classScheduleCardList.value[parentIndex].courseList[index]) return
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// const item = JSON.parse(JSON.stringify(classScheduleCardList.value[parentIndex].courseList[index]))
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// item.customDelete = false
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// dragingTdInfo.value = item
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// classScheduleCardList.value[parentIndex].courseList[index] = null
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}
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// 移动到 td 上触发
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function tdDragOver(parentIndex: number, index: number, e: any) {
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currentTDinfo.value = { parentIndex, index }
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const currentTd = classScheduleCardList.value[parentIndex].courseList[index]
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if (draggingIndex.value !== null && !currentTd) {
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const draggedItem = classTypeList.value[draggingIndex.value]
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// 将对应的课程数据 暂时 放入到td中
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classScheduleCardList.value[parentIndex].courseList[index] = draggedItem
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}
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// td 中进行拖拽
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if (dragingTdInfo.value && !currentTd) {
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classScheduleCardList.value[parentIndex].courseList[index] = JSON.parse(JSON.stringify(dragingTdInfo.value))
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}
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}
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// 课程在 td 上离开
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function tdDragleave(parentIndex: number, index: number, event: any) {
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// 检查 relatedTarget 是否在目标元素内
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const relatedTarget = event.relatedTarget as HTMLElement
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const isInside = relatedTarget?.closest('td') === event.currentTarget
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if (!isInside) {
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// 如果存在课程 return ,只有用户删除之后才可以添加新的课程
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// 存在 customDelete 删除属性,只能用户主动删除才可以清空,其余情况 拖拽元素移出就 清空
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const currentTd = classScheduleCardList.value[parentIndex].courseList[index]
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// 从课程类型中拖拽到 td 中
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if (draggingIndex.value !== null && currentTd && !currentTd.customDelete) {
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classScheduleCardList.value[parentIndex].courseList[index] = null
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}
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// td 中进行拖拽
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if (dragingTdInfo.value && !dragingTdInfo.value.customDelete && currentTd && !currentTd.customDelete) {
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classScheduleCardList.value[parentIndex].courseList[index] = null
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}
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}
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}
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// td中拖拽课程结束
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function tdDragend(parentIndex: number, index: number, e: any) {
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if (currentTDinfo.value == null) return
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const { parentIndex: currentParentIndex, index: currentIndex } = currentTDinfo.value
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const currentTd = classScheduleCardList.value[currentParentIndex].courseList[currentIndex]
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if (!currentTd) return
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const isSameTd = currentParentIndex === parentIndex && currentIndex === index
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const tdHasCourses = classScheduleCardList.value[currentParentIndex].courseList[currentIndex].customDelete
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if (isSameTd || tdHasCourses) {
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classScheduleCardList.value[parentIndex].courseList[index] = JSON.parse(JSON.stringify(dragingTdInfo.value))
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}
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dragingTdInfo.value = null
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currentTDinfo.value = null
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processCourseData()
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}
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// 删除
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function remove(parentIndex: number, index: number) {
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classScheduleCardList.value[parentIndex].courseList[index] = null
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}
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</script>
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<style lang="scss" scoped>
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.class-compopnents {
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display: flex;
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justify-content: flex-start;
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}
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.class-container {
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display: flex;
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flex-direction: column;
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width: 120px;
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margin-right: 20px;
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}
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.class-type {
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width: 50px;
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padding: 10px 10px;
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border-radius: 10px;
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margin-bottom: 10px;
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text-align: center;
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cursor: grab;
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text-align: center;
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user-select: none; /* 防止拖拽时选中文字 */
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transition: transform 0.2s, background-color 0.2s;
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&:hover {
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transform: scale(1.05); /* 鼠标悬浮时的缩放效果 */
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}
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}
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/* 正在拖拽的元素样式 */
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.dragging {
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opacity: 0.5;
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transform: scale(1.1); /* 拖拽中的缩放效果 */
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// background-color: #d3d3d3;
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}
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.class {
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width: 100%;
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height: 100%;
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}
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.course-schedule-container {
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width: 100%;
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height: 100%;
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text-align: center;
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}
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table {
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width: 300px;
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border-radius: 10px;
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}
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.header-tr {
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background-color: #f8f8f8;
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color: #aaa;
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}
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.notSelect {
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user-select: none;
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}
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.course-name {
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width: 100%;
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height: 100%;
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position: relative;
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.remove {
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width: 20px;
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height: 20px;
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text-align: center;
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line-height: 20px;
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position: absolute;
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top: -20px;
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right: -20px;
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font-size: 20px;
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transform: rotate(45deg);
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border-radius: 50%;
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border: 1px solid #000;
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cursor: pointer;
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}
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}
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table,
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th,
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td {
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border: 1px solid #ccc;
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border-collapse: collapse; /* 消除双边框效果 */
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transition: all 0.3s;
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}
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th,
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td {
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padding: 20px;
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}
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</style>
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