caipiao.sh

#! /bin/sh
#
caipiao () {
  awk -v type=$1 '
  function sort(ARRAY, ELEMENTS, temp, i, j) {
        for (i = 2; i <= ELEMENTS; ++i) {
                for (j = i; (j-1) in ARRAY && ARRAY[j-1] > ARRAY[j]; --j) {
                        temp = ARRAY[j]
                        ARRAY[j] = ARRAY[j-1]
                        ARRAY[j-1] = temp
                }
        }
        return
  }
  function gen_radom(NUM, TOPNUM, i, j, res, pick) {
        for (i = 1; i <= NUM; ++i) {
                do {
                        res = 1 + int(rand() * TOPNUM)
                } while (res in pick)
                pick[res] = res
        }
        j = 1
        for (i in pick)
                radom[j++] = pick[i]
  }
  BEGIN {
        srand('"$RANDOM"')
        if (type == "6+1") {
                gen_radom(6, 33); sort(radom, 6)
                for (i = 1; i <= 6; ++i)
                        printf("%02d ", radom[i])
                printf("     %d\n", 1 + int(rand() * 16))
        } else if (type == "3d") {
                #gen_radom(3, 10);
                for (i = 1; i <= 3; ++i)
                        printf("%2d ", int(rand() * 10))
                print
        } else if (type == "7") {
                gen_radom(7, 35); sort(radom,7)
                for (i = 1; i <= 7; ++i)
                        printf("%02d ", radom[i])
                print
        }
  }'
}

PS3='mai na ge? : '
select var in "shuang se qiu" "3D" "35 xuan 7" "exit"
do
    case $var in
        sh*)
                caipiao "6+1";;
        3D)
                caipiao "3d";;
        35*)
                caipiao "7";;
        exit)
                exit;;
        *)
                echo "no this option!";;
    esac
done