timetable.c

#include <stdio.h>

void SIC(int num);
void TNIC(int num);

int main(int argc, char const *argv[])
{
    for (int i = 1; i <= 9; i++) {
        for (int j = 1; j <= i; j++) {
            SIC(j);
            SIC(i);
            if ( (i * j) < 10 ) {
                printf("得");
            }
            SIC(i * j);
            printf("\t");
        }
        printf("\n");
    }
    return 0;
}

void SIC(int num) {
    if (num < 10) {
        TNIC(num);
    }
    else if (num < 100) {
        int a = (num % 10);
        num /= 10;
        int b = num;
        if (b == 1) {
            if (a == 0) {
                TNIC (1);
            }
            else {
                TNIC(10);
            }
        }
        else {
            TNIC(b);
        }

        if ( (b != 1) && (a != 0) ) {
            TNIC(10);
        } 
        
        TNIC(a);
    }
}


void TNIC(int num)
{
    switch (num) {
        case 0:  printf("十"); break;
        case 1:  printf("一"); break;
        case 2:  printf("二"); break;
        case 3:  printf("三"); break;
        case 4:  printf("四"); break;
        case 5:  printf("五"); break;
        case 6:  printf("六"); break;
        case 7:  printf("七"); break;
        case 8:  printf("八"); break;
        case 9:  printf("九"); break;
        case 10: printf("十"); break;
    }
}