一、case语句
1、语法介绍
可以用 if 语句替换
#!/bin/bash function menu () { cat << END 1.panxiaoting 2.gongli 3.fanbingbing END } function chose () { read -p "Which do you like?Ples input num:" number case "$number" in 1) echo "I guess,you like panxiaoting" ;; 2) echo "I guess,you like gongli" ;; 3) echo "I guess,you like fanbingbing" ;; *) echo "请输入正确的选项" exit 1 esac } function main () { menu chose } main
2、case语句总结
二、while循环语句
1、语法介绍
在while循环结尾done通过输入重定向指定读取的文件。
while read line
do
cmd
done<FILE