功能:从第i到j 行输出字符ch .

#include <stdio.h>
void chline (char, int, int);
int main (void)
{
        int i, j;
        char ch;

        printf ("请输入要处理的字符:\n");
        ch = getchar ();
        printf ("请输入从第几行开始处理:\n");
        scanf ("%d", &i);
        printf ("请输入从第几行开始结束:\n");
        scanf ("%d", &j);

        chline (ch, i, j);
}

void chline (char ch, int i; int j)
{
        int m, n;

        for (m = 0; m < i-1; m++)
                printf (" ");
        for (n = i; n <= j; n++)
                putchar (ch);
}

知道了.....
void chline (char ch, int i; int j)i后面是逗号............................