#!/bin/bashread -p "请输入当前money:" qianread -p "请输入工资:" gongzicat ./caidan#read -p "请输入要购买的商品价格:" shangpinkemai(){awk 'BEGIN{FS=":"}{print $3}' caidan | while read jiage;doif [ $1 -ge $jiage ];then    mai=`awk 'BEGIN{FS=":"}/:'$jiage'$/{ print $0}' caidan`     echo $maifidone}read -p "是否要输出可购买的商品[y/n]:" ans1[ $ans1 = y ] && kemai $qianyimai(){    qian=$1    while :;do        read -p "请输入要购买的商品编号:" num1        if awk 'BEGIN{FS=":"}{print $1}' caidan | grep $num1 &> /dev/null;then             jiage=`awk 'BEGIN{FS=":"}/^'$num1':/{print $3}' caidan`            [ $qian -ge $jiage ] && qian=$[$qian - $jiage] && echo "你还剩余${qian}元"||             {                echo "你的钱不够!你只有${qian}元了" &&                n=`echo "scale=1;( $jiage - $qian ) / $2" | bc`                [ `echo ${n##*.}` -gt 0 ] && n=$[${n%%.*}+1]                echo "你还需要收入${n}次工资才能购买"                break            }        fi    done}yimai $qian $gongzi

其中商品caidan文件格式如下:

1:自行车:100

2:汽车:1000

3:电脑:500

好吧,其实这是个py练习=.=