while条件循环语句
#vi guess.sh [PRICE(变量值) t(参数值)=0] let t++(操作一次加一)] #ll guess.sh #chmod 744 guess.sh #chmod root: guess.sh #chmod 744 guess.sh #ll guess.sh #./guess.sh
yes和no的循环语句 #vi yesorno.sh
case条件测试语句 #vi check.sh #!/bin/bash read -p "请输入一个字符,并按"
#chmod 777 check.sh #./check.sh