用C语言while语句怎么编出

           *
          **
         ***
        ****

#include <stdio.h>
int main () {
    int i=1,j;
    while(i<=4){
        printf("%8c",' ');
        j=1;
        while(j<=4-i){
            printf(" ");
            j++;
        }
        j=1;
        while(j<=i){
            printf("*");
            j++;
        }
        printf("\n");
        i++;
    }
    return 0;
}

觉得有用的话采纳一下哈