Virtual ListSAFE
蓝鲸智云容器管理平台(BlueKing Container Service)
Overview
蓝鲸智云容器管理平台(BlueKing Container Service)
87a6fdb6f4b4OBSERVED · 2026-10-12What it tells the agent
The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.
---
id: perf-virtual-list
name: 长列表虚拟滚动优化方案
category: performance
description: 处理超过 1000 条数据的大型列表渲染时的性能优化方案,包含定高和不定高两种策略。
tags: [performance, vue3, virtual-scroll, list]
updated_at: 2026-01-09
---
# 长列表虚拟滚动优化方案
当列表数据量巨大(如日志列表、审计记录,n > 1000)时,直接渲染会导致 DOM 节点过多,页面卡顿。
## 核心原理
只渲染当前**可视区域 (Viewport)** 内的元素,加上缓冲区 (Buffer) 的元素。随着滚动条滚动,动态替换 DOM 内容。
## 推荐方案
### 1. 定高列表 (Item Height Fixed)
如果每一行高度固定(例如 40px),推荐使用轻量实现。
**使用方式:**
```html
<VirtualList :items="logList" :item-height="40" :container-height="400">
<template #default="{ item }">
<div class="log-item">{{ item.message }}</div>
</template>
</VirtualList>
```
> 📦 获取完整组件实现:`skill://virtual-list/assets/VirtualList.vue`
### 2. 不定高列表 (Dynamic Height)
如果列表项高度不固定(如包含展开/收起、不同长度文本),计算逻辑会变得复杂。
**推荐库**: `vue-virtual-scroller` 的 `DynamicScroller` 组件。
```html
<template>
<DynamicScroller
:items="items"
:min-item-size="54"
class="scroller"
>
<template #default="{ item, index, active }">
<DynamicScrollerItem
:item="item"
:active="active"
:size-dependencies="[
item.message,
]"
:data-index="index"
>
<div class="message">{{ item.message }}</div>
</DynamicScrollerItem>
</template>
</DynamicScroller>
</template>
```
## 注意事项
1. **滚动白屏**: 滚动过快时可能出现瞬间白屏,适当增加 `buffer` 缓冲区大小。
2. **搜索/筛选**: 虚拟列表与搜索过滤不冲突,只需对 `props.items` 进行 computed 过滤即可。
---
## 📦 可用资源
- `skill://virtual-list/assets/VirtualList.vue`
> 根据 SKILL.md 中的 IF-THEN 规则判断是否需要加载Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | WARN |
| L1 | Static analysis of the code | NA |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (1)
.codebuddy
Gates applied: no_behavioural_pass.
87a6fdb6f4b4full audit observations/trust-audit/skill/tencentblueking__virtual-list.json · Report an issue / request a re-scanAudit history
Every audit this skill has had.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-12 | 87a6fdb6f4b4 | SAFE | B | 89 | first audit |
Questions
What does the Virtual List skill do?
蓝鲸智云容器管理平台(BlueKing Container Service)
Is Virtual List safe to install?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.
What can Virtual List access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
How current is this page?
The grade is for one exact copy of the source (87a6fdb6f4b4), read on 2026-10-12. The repository is watched, and a new audit runs when it changes — this is the first audit.