punishment(){
    cat <<EOF
    =========================================================
    =     1、 大喊李世杰万岁                                  =
    =     2、 去隔壁班门口二十个俯卧撑                         =
    =     3、 表演胸口碎大石                                  =
    =     4、 来段单口相声                                    =
    =     5、 跟宋世雄比抽烟                                  =
    =========================================================
EOF
    read -p "选你相中的惩罚吧：" number
    if [ $number -eq 1 ];then
        echo "${name}的惩罚大喊李世杰万岁，这都不喊，欺我组长太甚" >>./records.txt
    elif [ $number -eq 2 ];then
        echo "${name}的惩罚去隔壁班门口二十个俯卧撑，未完成" >>./records.txt
    elif [ $number -eq 3 ];then
        echo "${name}的惩罚表演胸口碎大石，未完成" >>./records.txt
    elif [ $number -eq 4 ];then
        echo "${name}的惩罚来段单口相声，未完成" >>./records.txt
    elif [ $number -eq 5 ];then
        echo "${name}的惩罚跟宋世雄比抽烟，未完成" >>./records.txt
    else
        echo "请正确使用脚本"
        exit
    fi 
}
give_name(){
    name=""
    while [ -z "$name" ]
    do
        name_id=`echo $((RANDOM%38+1))`
        name=`fgrep "[$name_id]" ./name.txt | awk '{print $2}' `
    done
    echo "有请嘉宾$name"
}
init(){
    if [ -z "`cat ./name.txt`" ];then
            \cp ./name.back ./name.txt && \
            > ./records.txt
            echo "第一轮循环结束，正在初始化信息表，开启下一轮"
        fi
}
    read -p "是否初始化名单表，请输入[yes|no]" choice
        if [ "$choice" = "yes" ];then
            \cp ./name.back ./name.txt && \
            > ./records.txt
        fi
a=`awk 'END{print NR}' ./name.txt`
i=0
while [ $i -le $a ]
do
    problem_id=`echo $((RANDOM%7+1))`
    problem=`grep $problem_id ./problem.txt | awk '{print $2}'`
    answer=`grep $problem_id ./problem.txt | awk '{print $3}'`
    init
    echo "开始点名"
    sleep 2
    give_name
    read -p "请听题，${problem} ：" result
if [ "$result" != "$answer" ];then    
    punishment
    read -p "请输入是否完成惩罚[yes|no]" num
    if [ "$num" = "yes" ];then
        sed -i '/${name_id}/d' ./records.txt
        sed -i '/'$num'/d' ./records.txt
        echo "不错，我就知道你行的，下课点一根去~~~~~~~"
    else
        echo "ok，记下来了，发杰哥邮箱去；"
        tail -n 1 ./records.txt | mail -s "不好好做惩罚，求处置" 18894431968@163.com
    fi    
fi
    sed -i '/'"$name"'/d' ./name.txt && \
    let i++
    sleep 2
    read -p "是否继续点名呢：[yes|no]": inquire
    if [ "${inquire}" = "yes" ];then
        echo "ok，继续来"
    elif [ "${inquire}" = "no" ];then
        exit
    else
        echo "还想继续，很好"
    fi  
    sleep 1 
done