讓我們使用 PC 鍵盤在終端演奏鋼琴 | Linux 中國

厭倦了工作？那麼來吧，讓我們彈彈鋼琴！是的，你沒有看錯，根本不需要真的鋼琴。我們可以用 PC 鍵盤在命令列下就能彈鋼琴。向你們介紹一下 piano-rs —— 這是一款用 Rust 語言編寫的，可以讓你用 PC 鍵盤在終端彈鋼琴的簡單工具。它自由開源，基於 MIT 協議。你可以在任何支援 Rust 的作業系統中使用它。

piano-rs：使用 PC 鍵盤在終端彈鋼琴

安裝

確保系統已經安裝了 Rust 程式語言。若還未安裝，執行下麵命令來安裝它。

curl https://sh.rustup.rs -sSf | sh

（LCTT 譯註：這種直接透過 curl 執行遠端 shell 指令碼是一種非常危險和不成熟的做法。）

安裝程式會問你是否預設安裝還是自定義安裝還是取消安裝。我希望預設安裝，因此輸入 1（數字一）。

info: downloading installer
Welcome to Rust!
This will download and install the official compiler for the Rust programming
language, and its package manager, Cargo.
It will add the cargo, rustc, rustup and other commands to Cargo's bin
directory, located at:
/home/sk/.cargo/bin
This path will then be added to your PATH environment variable by modifying the
profile files located at:
/home/sk/.profile
/home/sk/.bash_profile
You can uninstall at any time with rustup self uninstall and these changes will
be reverted.
Current installation options:
default host triple: x86_64-unknown-linux-gnu
 default toolchain: stable
 modify PATH variable: yes
1) Proceed with installation (default)
2) Customize installation
3) Cancel installation
1
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
223.6 KiB / 223.6 KiB (100 %) 215.1 KiB/s ETA: 0 s
info: latest update on 2017-10-12, rust version 1.21.0 (3b72af97e 2017-10-09)
info: downloading component 'rustc'
 38.5 MiB / 38.5 MiB (100 %) 459.3 KiB/s ETA: 0 s
info: downloading component 'rust-std'
 56.7 MiB / 56.7 MiB (100 %) 220.6 KiB/s ETA: 0 s
info: downloading component 'cargo'
 3.7 MiB / 3.7 MiB (100 %) 173.5 KiB/s ETA: 0 s
info: downloading component 'rust-docs'
 4.1 MiB / 4.1 MiB (100 %) 224.0 KiB/s ETA: 0 s
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'
info: default toolchain set to 'stable'
stable installed - rustc 1.21.0 (3b72af97e 2017-10-09)
Rust is installed now. Great!
To get started you need Cargo's bin directory ($HOME/.cargo/bin) in your PATH
environment variable. Next time you log in this will be done automatically.
To configure your current shell run source $HOME/.cargo/env

$ rustc --version
rustc 1.21.0 (3b72af97e 2017-10-09)

git clone https://github.com/ritiek/piano-rs

cd piano-rs

cargo build --release

./target/release/piano-rs

$ ./target/release/piano-rs -h
piano-rs 0.1.0
Ritiek Malhotra <ritiekmalhotra123@gmail.com>
Play piano in the terminal using PC keyboard.
USAGE:
 piano-rs [OPTIONS]
FLAGS:
 -h, --help Prints help information
 -V, --version Prints version information
OPTIONS:
 -c, --color <COLOR> Color of block to generate when a note is played (Default: "red")
 -d, --duration <DURATION> Duration to play each note for, where 0 means till the end of note (Default: 0)
 -s, --sequence <SEQUENCE> Frequency sequence from 0 to 5 to begin with (Default: 2)