Shell脚本遍历字典菜单

#!/bin/bash

echo "
   1，添加
   2，删除
   3，查询所有
   4，单个查询
   5，清空
   6，恢复
   7, 查询恢复
"
read -p "请选择：" choice

declare -A dic    #定义字典

dic=([1]="add" [2]="delete" [3]="list" [4]="query" [5]="clean" [6]="recover" [7]="showrecover")
for key in $(echo ${!dic[*]}); do
   if [ $choice -eq $key ]; then
      echo ${dic[$key]}
         exit
   fi
done