按计数输出字符

#include <stdio.h>  

void chLineRow(char ch, int c, int r);  

int main(void) {  
    char ch; 
    int col, row;  

    printf(Enter a character (# to quit): );  

    while ( (ch = getchar()) != '#') {  
        if (ch == '\n')  
            continue;  
        printf(Enter number of columns and number of rows: );  
        if (scanf(%d %d, &col, &row) != 2)  
            break;  
        chLineRow(ch, col, row);  
        printf(\nEnter next character (# to quit): );  
    }  
    printf(Bye!\n);  

    return 0;  
}  

// start rows and cols at 0  
void chLineRow(char ch, int c, int r)  
{  
    int col, row;  

    for (row = 0; row < r ; row++)  
    {  
        for (col = 0; col < c; col++)  
            putchar(ch);  
        putchar('\n');  
    }  
    return;  
}