feat(班级PK): 班级 PK 页重做:两个班看比分和每道题谁赢,三个班以上看题目对照格,学生也能比
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- 两个班:大比分 + 一次就对副比分,每道题左右两根条、差得最多的在上,下面每周人均和全班分布
- 三个班以上:一行一道题、一格一个班,越深做对的人越多,皇冠是这道做得最好的班;右边谁领先的题多和赛跑
- 学生自己的班标「你们班」,输掉的题写「再 N 人做对就打平」;AI 分析只给老师,直接在页面里出
- 去掉综合分、雷达图、十张柱状图;手机版按稿改成上下排和页签
- 排名页、班级对抗、班级详情的入口对登录的人都开放,带上当前的班

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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xuyueandClaude Opus 5.5 committed 2026-10-10 09:06:21 +08:00
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<script setup lang="ts">
import type { ClassPk } from "@oj2/contract"
import { useThemeVars } from "naive-ui"
import { classLabel } from "oj/submission/utils"
import { useRankPalette } from "oj/rank/palette"
import { needToTie, pkColor, shortLabels, tint } from "../utils"
import PkRace from "./PkRace.vue"
/**
* 三个班以上(设计稿「班级 PK」C / 学生 · 三个班 / 手机 · 三个班以上):题目对照格,一行
* 一道题、一格一个班,越深做对的人越多,皇冠 = 这道做得最好(一样多都算)。右边谁领先的题多、
* 一句话(学生:离领先最近的那道;老师:差得最多的那道)、赛跑。
*/
const props = defineProps<{ pk: ClassPk; compact: boolean }>()
const theme = useThemeVars()
const palette = useRankPalette()
const shorts = computed(() => shortLabels(props.pk))
const mineIndex = computed(() =>
props.pk.classes.findIndex((item) => item.className === props.pk.mine),
)
const rows = computed(() =>
props.pk.problems.map((problem) => {
const top = Math.max(...problem.cells.map((cell) => cell?.percent ?? -1))
const winner = problem.cells.findIndex((cell) => cell?.best)
const own = mineIndex.value >= 0 ? problem.cells[mineIndex.value] : null
const tie =
own && !own.best ? needToTie(own, props.pk.classes[mineIndex.value]!.members, top) : null
return {
problem,
winner,
tie,
cells: problem.cells.map((cell, index) => {
if (!cell) return null
// 做对比例 45% 以下最浅,100% 最深;深到压白字时字换白
const alpha = Math.max(0.1, Math.min(0.85, ((cell.percent - 45) / 55) * 0.85))
return {
...cell,
background: tint(pkColor(index), alpha),
dark: alpha > 0.5,
hint: `${props.pk.classes[index]!.className.slice(2)}班:做对 ${cell.solved}/${props.pk.classes[index]!.members} 人、交了 ${cell.submissions} 次、一次就对 ${cell.firstPercent}%`,
}
}),
}
}),
)
const ranking = computed(() =>
props.pk.classes
.map((item, index) => ({ item, index }))
.sort((a, b) => b.item.lead - a.item.lead || b.item.perCapita - a.item.perCapita),
)
/** 右边那一句:学生看离领先最近的那道,老师看差得最多的那道 */
const insight = computed(() => {
if (mineIndex.value >= 0) {
const close = rows.value.filter((row) => row.tie !== null).sort((a, b) => a.tie! - b.tie!)[0]
if (!close) return { mine: true, text: "同一批题你们班都做得最好" }
return {
mine: true,
text: `离领先最近:「${close.problem.title}」再 ${close.tie} 人做对就和${shorts.value[close.winner]}打平`,
}
}
let worst: { title: string; low: number; lowIndex: number; others: number } | null = null
for (const row of rows.value) {
const present = row.cells
.map((cell, index) => (cell ? { percent: cell.percent, index } : null))
.filter((cell): cell is { percent: number; index: number } => !!cell)
.sort((a, b) => a.percent - b.percent)
const gap = present[1]!.percent - present[0]!.percent
if (!worst || gap > worst.others - worst.low)
worst = {
title: row.problem.title,
low: present[0]!.percent,
lowIndex: present[0]!.index,
others: present[1]!.percent,
}
}
if (!worst || worst.others === worst.low) return null
return {
mine: false,
text: `差得最多的是「${worst.title}」:${shorts.value[worst.lowIndex]}只有 ${worst.low}% 做对,别的班都在 ${worst.others}% 以上`,
}
})
const SHOW_MOBILE = 8
const expanded = ref(false)
const shownRows = computed(() =>
props.compact && !expanded.value ? rows.value.slice(0, SHOW_MOBILE) : rows.value,
)
const soloCount = computed(() => props.pk.solo.length)
const tab = ref<"race" | "lead">("race")
const medal = (index: number) => palette.value.medal[index]
</script>
<template>
<div class="grid-pk" :class="{ compact }">
<div class="card table">
<div class="card-title">
<b>同一批题 · 一格一个班</b>
<span class="muted">
格子里是全班做对的人占几成,越深越多<template v-if="!compact">
· 皇冠 = 这道题做得最好的班(一样多就都算)</template
>
</span>
</div>
<div class="line heads">
<span v-if="!compact" class="name muted">至少两个班布置过的 {{ rows.length }} 道</span>
<span
v-for="(item, index) in pk.classes"
:key="item.className"
class="head"
:class="{ mine: index === mineIndex }"
:style="{ background: tint(pkColor(index), 0.1) }"
>
<span class="head-name" :style="{ color: pkColor(index) }">
{{ compact ? shorts[index] : classLabel(item.className) }}
<span v-if="index === mineIndex" class="mine-tag">{{
compact ? "你们" : "你们班"
}}</span>
</span>
<span class="head-lead">
<span v-if="!compact" class="muted">领先</span>
<b :style="{ color: pkColor(index) }">{{ item.lead }}</b>
<span class="muted">{{ compact ? "道领先" : "道" }}</span>
</span>
<span v-if="!compact" class="muted per">人均做对 {{ item.perCapita }}</span>
</span>
</div>
<div
v-for="row in shownRows"
:key="row.problem.problemId"
class="line"
:class="{ stacked: compact }"
>
<span class="name">
<span v-if="!compact" class="muted id">#{{ row.problem.displayId }}</span>
<router-link class="ell" :to="`/problem/${row.problem.displayId}`">{{
row.problem.title
}}</router-link>
<span v-if="row.tie !== null" class="tie" :class="{ close: row.tie <= 2 }"
>再 {{ row.tie }} 人就平</span
>
</span>
<div class="cells">
<template v-for="(cell, index) in row.cells" :key="index">
<span v-if="!cell" class="cell none">{{ compact ? "—" : "没布置" }}</span>
<span
v-else
class="cell"
:class="{ best: cell.best, dark: cell.dark, mine: index === mineIndex }"
:style="{ background: cell.background }"
:title="cell.hint"
>
<svg v-if="cell.best" class="crown" viewBox="0 0 24 24" aria-label="这道做得最好">
<path d="M3 8l4.5 4L12 5l4.5 7L21 8l-2 11H5z" />
</svg>
<b>{{ cell.percent }}{{ compact ? "" : "%" }}</b>
<span v-if="!compact" class="first">一次 {{ cell.firstPercent }}%</span>
</span>
</template>
</div>
</div>
<button
v-if="compact && rows.length > SHOW_MOBILE"
class="more"
@click="expanded = !expanded"
>
{{ expanded ? "收起" : `再看 ${rows.length - SHOW_MOBILE} 道 ›` }}
</button>
<span v-if="!compact && soloCount" class="muted foot">
只有一个班做过的 {{ soloCount }} 道不在格子里 · 鼠标放到格子上看做对几个人、交了几次
</span>
</div>
<div class="side" :class="{ compact }">
<div v-if="compact" class="tabs" role="tablist">
<button :class="{ on: tab === 'race' }" role="tab" @click="tab = 'race'">赛跑</button>
<button :class="{ on: tab === 'lead' }" role="tab" @click="tab = 'lead'">
谁领先的题多
</button>
</div>
<div v-if="!compact || tab === 'lead'" class="card pad">
<div v-if="!compact" class="card-title">
<b>谁领先的题多</b><span class="muted">同一批题里</span>
</div>
<div
v-for="({ item, index }, place) in ranking"
:key="item.className"
class="lead-row"
:class="{ mine: index === mineIndex }"
>
<span
class="medal"
:style="
medal(place)
? { color: medal(place)!.color, background: medal(place)!.background }
: undefined
"
>{{ place + 1 }}</span
>
<span class="lead-name" :style="{ color: pkColor(index) }">
{{ classLabel(item.className) }}
<span v-if="index === mineIndex" class="mine-tag">你们班</span>
</span>
<span
><b class="num">{{ item.lead }}</b
><span class="muted"> 道领先</span></span
>
</div>
<div v-if="insight" class="insight" :class="{ mine: insight.mine }">{{ insight.text }}</div>
</div>
<div v-if="!compact || tab === 'race'" class="card pad">
<div v-if="!compact" class="card-title">
<b>赛跑</b><span class="muted">这学期累计人均做对</span>
</div>
<PkRace :pk="pk" :width="420" :height="compact ? 220 : 230" />
</div>
</div>
</div>
</template>
<style scoped>
.grid-pk {
display: flex;
gap: 16px;
align-items: flex-start;
}
.grid-pk.compact {
flex-direction: column;
align-items: stretch;
gap: 10px;
}
.card {
border: 1px solid v-bind("theme.borderColor");
border-radius: 6px;
background: v-bind("theme.cardColor");
min-width: 0;
}
.table {
flex: 1.75;
padding: 12px 16px;
display: flex;
flex-direction: column;
gap: 6px;
}
.pad {
padding: 12px 16px;
}
.card-title {
display: flex;
align-items: baseline;
flex-wrap: wrap;
gap: 4px 8px;
}
.muted {
font-size: 12px;
font-weight: 400;
color: v-bind("theme.textColor3");
}
.line {
display: flex;
align-items: center;
gap: 6px;
min-height: 40px;
}
.line.heads {
align-items: stretch;
}
.name {
width: 290px;
flex-shrink: 0;
display: flex;
align-items: baseline;
gap: 6px;
min-width: 0;
}
.heads .name {
align-items: flex-end;
padding-bottom: 6px;
}
.name a {
font-size: 13px;
font-weight: 600;
color: v-bind("theme.textColor1");
text-decoration: none;
min-width: 0;
}
.name a:hover {
color: v-bind("theme.primaryColor");
}
.id {
flex-shrink: 0;
font-size: 11px;
}
.ell {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.head {
flex: 1;
min-width: 0;
display: flex;
flex-direction: column;
align-items: center;
gap: 2px;
padding: 8px 0;
border-radius: 6px;
}
.head.mine {
box-shadow: inset 0 0 0 2px #9fd8b8;
}
.head-name {
display: flex;
align-items: center;
gap: 6px;
font-weight: 700;
}
.head-lead {
display: flex;
align-items: baseline;
gap: 4px;
white-space: nowrap;
}
.per {
font-size: 11px;
white-space: nowrap;
}
.head-lead b {
font-size: 22px;
font-variant-numeric: tabular-nums;
}
.mine-tag {
font-size: 11px;
background: rgba(24, 160, 88, 0.12);
color: #18a058;
border-radius: 3px;
padding: 0 5px;
height: 16px;
display: inline-flex;
align-items: center;
font-weight: 600;
white-space: nowrap;
}
.cells {
flex: 1;
min-width: 0;
display: flex;
gap: 6px;
}
.heads .head,
.cells .cell {
flex: 1;
}
.cell {
min-width: 0;
height: 34px;
display: flex;
align-items: center;
justify-content: center;
gap: 6px;
border-radius: 4px;
color: v-bind("theme.textColor1");
font-variant-numeric: tabular-nums;
}
.cell.dark {
color: #ffffff;
}
.cell.best {
box-shadow: inset 0 0 0 2px #c58b00;
}
.cell b {
font-size: 14px;
}
.first {
font-size: 11px;
opacity: 0.85;
}
.cell.none {
font-size: 12px;
color: v-bind("theme.textColorDisabled");
background: repeating-linear-gradient(
135deg,
v-bind("theme.actionColor") 0 6px,
v-bind("theme.hoverColor") 6px 12px
);
}
.crown {
width: 12px;
height: 12px;
flex-shrink: 0;
fill: #c58b00;
stroke: #c58b00;
stroke-width: 1.5;
stroke-linejoin: round;
}
.cell.dark .crown {
fill: #ffffff;
stroke: #ffffff;
}
.tie {
flex-shrink: 0;
font-size: 11px;
font-weight: 600;
white-space: nowrap;
color: v-bind("theme.textColor3");
}
.tie.close {
color: #18a058;
background: rgba(24, 160, 88, 0.12);
border-radius: 3px;
padding: 0 5px;
}
.foot {
padding-top: 4px;
}
.side {
flex: 1;
min-width: 0;
display: flex;
flex-direction: column;
gap: 16px;
}
.lead-row {
height: 34px;
display: flex;
align-items: center;
gap: 10px;
}
.lead-row.mine {
background: rgba(24, 160, 88, 0.08);
border-radius: 6px;
padding: 0 6px;
margin: 0 -6px;
}
.medal {
width: 26px;
height: 26px;
border-radius: 13px;
display: inline-flex;
align-items: center;
justify-content: center;
font-weight: 700;
font-size: 13px;
flex-shrink: 0;
color: v-bind("theme.textColor2");
}
.lead-name {
flex: 1;
font-weight: 600;
display: flex;
align-items: center;
gap: 6px;
}
.num {
font-size: 16px;
font-variant-numeric: tabular-nums;
}
.insight {
margin-top: 8px;
font-size: 13px;
color: v-bind("theme.textColor2");
padding: 8px 10px;
background: v-bind("theme.actionColor");
border-radius: 6px;
}
.insight.mine {
background: transparent;
border: 1px dashed #9fd8b8;
color: #18a058;
font-weight: 600;
}
.more {
width: 100%;
height: 40px;
border: 0;
background: none;
font: inherit;
font-size: 13px;
color: v-bind("theme.primaryColor");
cursor: pointer;
}
/* ---------- 手机 ---------- */
.compact .table {
padding: 10px 12px 2px;
}
.compact .line.heads {
min-height: 0;
padding-top: 4px;
}
.compact .head {
padding: 6px 0;
}
.compact .head-name {
font-size: 12px;
flex-direction: column;
gap: 0;
}
.compact .per {
font-size: 11px;
white-space: nowrap;
}
.head-lead b {
font-size: 20px;
}
.line.stacked {
flex-direction: column;
align-items: stretch;
gap: 4px;
padding: 6px 0;
border-bottom: 1px solid v-bind("theme.dividerColor");
}
.line.stacked .name {
width: auto;
}
.compact .cells {
gap: 4px;
}
.compact .cell {
height: 28px;
gap: 2px;
font-size: 12px;
}
.compact .cell b {
font-size: 12px;
}
.compact .crown {
width: 10px;
height: 10px;
}
.side.compact {
gap: 0;
border: 1px solid v-bind("theme.borderColor");
border-radius: 6px;
padding: 0 12px 12px;
}
.side.compact .card {
border: 0;
padding: 10px 0 0;
}
.tabs {
display: flex;
gap: 18px;
border-bottom: 1px solid v-bind("theme.dividerColor");
}
.tabs button {
height: 34px;
padding: 0;
border: 0;
background: none;
font: inherit;
font-size: 14px;
color: v-bind("theme.textColor2");
cursor: pointer;
}
.tabs button.on {
color: #18a058;
font-weight: 600;
box-shadow: inset 0 -2px 0 #18a058;
}
</style>