练习打字的工具，可以自定义练习范围与字母出现频次，能够统计速度与错误率。
在线地址：https://wwwtyro.github.io/keyzen
github地址：https://github.com/wwwtyro/keyzen
在线地址：https://wwwtyro.github.io/keyzen
github地址：https://github.com/wwwtyro/keyzen
GitHub
GitHub - wwwtyro/keyzen: A touch typing trainer geared towards programmers and others that need to practice with all the symbols…
A touch typing trainer geared towards programmers and others that need to practice with all the symbols on the keyboard. - wwwtyro/keyzen