Read a single char from stdin without pressing enter

问题

How can I read a single char from the console without pressing enter / return?

In ruby I would just use:

require 'io/console'
input = STDIN.getch

回答1:

Try this:

char = STDIN.raw &.read_char
p char

来源：https://stackoverflow.com/questions/39964008/read-a-single-char-from-stdin-without-pressing-enter