#!/bin/basheat[1]="泡面"eat[2]="粑粑"eat[3]="烩面"eat[4]="热干面"eat[5]="鸡蛋面"eat[6]="刀削面"eat[7]="肉丝面"index=0while [ "${index}" -lt 3 ]; do    check=$(( ${RANDOM} * ${index} / 32767 + 1 ))    mycheck=0    if [ "${index}" -ge 1 ]; then        for i in $(seq 1 ${index})        do            if [ $[indexcon[${i}]] == ${chek} ]; then                mycheck=1            fi        done    fidone