🏆 计分器（在线记分牌）Online Scoreboard
全屏大字体在线记分牌：2–4 支队伍，可改队名，点击比分 +1，支持篮球 +1/+2/+3、排球羽毛球乒乓球局分、知识竞赛 ±10 等模板，带比赛倒计时和鸣笛、节数、撤销、交换场地，键盘快捷键操作，比分自动保存。A full-screen online scoreboard for 2–4 teams with editable names, tap-to-score, presets for basketball (+1/+2/+3), volleyball/badminton/table-tennis sets and quizzes (±10), a game clock with buzzer, periods, undo, swap sides, keyboard shortcuts and auto-save.
点击大比分 +1；键盘：左队 Q / A，右队 P / L 加减分，空格开始/暂停计时。比分自动保存在本机。Tap a big score for +1. Keys: left team Q/A, right team P/L, Space starts/pauses the clock. Scores are saved on this device.
使用说明与常见问题How-to & FAQ
「计分器（在线记分牌）」是什么？What is the Online Scoreboard?
全屏大字体在线记分牌：2–4 支队伍，可改队名，点击比分 +1，支持篮球 +1/+2/+3、排球羽毛球乒乓球局分、知识竞赛 ±10 等模板，带比赛倒计时和鸣笛、节数、撤销、交换场地，键盘快捷键操作，比分自动保存。A full-screen online scoreboard for 2–4 teams with editable names, tap-to-score, presets for basketball (+1/+2/+3), volleyball/badminton/table-tennis sets and quizzes (±10), a game clock with buzzer, periods, undo, swap sides, keyboard shortcuts and auto-save.
如何使用「计分器（在线记分牌）」？How do I use the Online Scoreboard?
选择模板和队伍数，点队名可以修改。比赛时直接点大比分 +1，或用下面的按钮加减分；需要计时就设置分钟数点“开始/暂停”。点“全屏记分牌”可投到电视或大屏上。按错了点“撤销”。Choose a preset and team count, and tap a team name to edit it. Tap a big score for +1 or use the buttons; set minutes and press Start/Pause for the clock. Full screen is great on a TV. Undo fixes mistakes.
刷新页面比分会丢吗？Will a refresh lose the score?
不会。比分、队名和设置自动保存在本机浏览器里，刷新或关闭后再打开都能继续。点“比分清零”才会重置。No. Scores, names and settings are saved in this browser; only Reset scores clears them.
能用键盘记分吗？Can I score with a keyboard?
可以：左边队伍 Q 加分、A 减分，右边队伍 P 加分、L 减分，空格开始/暂停计时，适合裁判用电脑操作。Yes: left team Q/A, right team P/L, Space starts or pauses the clock.
「计分器（在线记分牌）」免费吗？文件会上传吗？Is the Online Scoreboard free? Are my files uploaded?
「计分器（在线记分牌）」完全免费，无需注册。你输入的内容只保存在本机浏览器里（方便下次继续），不会上传到任何服务器。The Online Scoreboard is free with no sign-up. What you enter stays in this browser only (so you can continue later) and is never uploaded to any server.