84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
看下面的代码
stty cbreak -echo input==`dd if=/dev/tty bs=1 count=1 2>/dev/null` stty -cbreak echo if [ "$input" = "a" ];then echo "输入的是a" fi
我如何确定输入的是退格键(backspace)呢,也就是说backspace的标志是什么?
认证0级讲师
if [ "$input" = $(echo -ne '\b') ];then
认证0级讲师