【C初识之习题二】

#include<stdio.h>
#include<stdlib.h>
int main( )
{
int i = 0;
for (i = 100; i <= 200; i++){
    if (i % 2 != 0){
        printf(" %d  ", i);
    }
}
system("pause");
return 0;
}

输出乘法口诀表

#include<stdio.h>
#include<stdlib.h>
int main()
{
int m, n,num=0;
printf("九九乘法表：\n");
for (m = 1; m <= 9; m++){
    for (n = 1; n <= m; n++){
        num = m*n;
        printf(" %d*%d=%d ",n ,m, num); 
    }
    printf("\n");
}
system("pause");
return 0;
}

#include<stdio.h>
#include<stdlib.h>
int main()
{
int i = 0;
for (i = 1000; i <= 2000; i++){
    if (i % 4 == 0 || i % 100 != 0 && i % 400 == 0){
        printf(" %d ", i);
    }
}
system("pause");
return 0;
}