正方形

/*正方形*/#include "stdio.h"void main(){    int n=5;    int i;    int j;    i=0;    while(i<5){    printf ("* ");    i=i+1;    }    printf("\n");/*second *    * */for (i=0;i<n-1;i++){printf("* ");for(j=0;j<n-2;j++)printf("  ");printf("*\n");}/*third*/    i=0;    while(i<5){    printf ("* ");    i=i+1;}    printf("\n");