设计函数chline(ch, i, j),实现指定字符在i列

#include<stdio.h>
void chline(char , int , int );
int main(void)
{
 int x,y;
 char ch;
 printf("input a char:");
 scanf("%c",&ch);
 printf("input two int:");
 scanf("%d%d",&x,&y);
 chline(ch,x,y);
 return 0;
}
void chline(char ch, int i, int j)
{
 int k;
 for(k=1; k<i; k++)
 printf(" ");
 for( ; k<=j; k++)
 printf("%c",ch);
 printf("\n");
}