From https://docs.microsoft.com/zh-cn/learn/paths/rust-first-steps/
$ cargo run -- -j test-journal.json add "buy milk"
$ cargo run -- -j test-journal.json add "take the dog for a walk"
$ cargo run -- -j test-journal.json add "water the plants"
$ cargo run -- -j test-journal.json list
1: buy milk [2021-01-08 16:39]
2: take the dog for a walk [2021-01-08 16:39]
3: water the plants [2021-01-08 16:39]
$ cargo run -- -j test-journal.json done 2
$ cargo run -- -j test-journal.json list
1: buy milk [2021-01-08 16:39]
2: water the plants [2021-01-08 16:39]