🎹 在线钢琴Online Piano
在浏览器中弹钢琴：鼠标点击、触屏或电脑键盘（Z 行 + S 行为低八度，Q 行 + 数字行为高八度，共 24 键）演奏两个八度，支持多种音色。Play a two-octave piano in your browser with mouse, touch or computer keyboard (Z row + S row = lower octave, Q row + number row = upper octave, all 24 keys), several tones.
电脑键盘（共 24 键）：低八度白键 Z X C V B N M、黑键 S D G H J；高八度白键 Q W E R T Y U、黑键 2 3 5 6 7。每个琴键上标有对应按键。Computer keyboard (all 24 keys): lower octave white Z X C V B N M, black S D G H J; upper octave white Q W E R T Y U, black 2 3 5 6 7. Each piano key shows its letter.
使用说明与常见问题How-to & FAQ
「在线钢琴」是什么？What is the Online Piano?
在浏览器中弹钢琴：鼠标点击、触屏或电脑键盘（Z 行 + S 行为低八度，Q 行 + 数字行为高八度，共 24 键）演奏两个八度，支持多种音色。Play a two-octave piano in your browser with mouse, touch or computer keyboard (Z row + S row = lower octave, Q row + number row = upper octave, all 24 keys), several tones.
如何使用「在线钢琴」？How do I use the Online Piano?
在「在线钢琴」中，在上方填写或选择所需内容，结果会实时显示在下方；所有处理都在浏览器本地完成。In the Online Piano: Fill in or choose the options above and the result appears below instantly; everything runs locally in your browser.
手机上能用吗？Does it work on mobile?
可以。「在线钢琴」支持触屏操作，在手机和平板浏览器中均可使用，无需安装 App。Yes. The Online Piano supports touch input and works in mobile and tablet browsers without installing an app.
「在线钢琴」免费吗？需要注册吗？Is the Online Piano free? Do I need an account?
「在线钢琴」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Online Piano is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.