Exercise 4-8

 

 原始碼

#include <stdio.h>

 int main() {

    int i,j,num;

    i=1;

    j=1;

    printf("enter the base length of a triangle: ");

    scanf("%d",&num);

    for (i;i<=num;i=i+1){

        for (j;j<=i;j=j+1){

            printf("*");

        }

        printf("\n");

        j=1;

    }

   

    return 0;

}