通过输入 边长 和 形状 来绘制矩形

#include <stdio.h>int mydraw(int, char);int main(){    int side;    char patten;    printf("please enter the side and the patten(eg 3 #): ");    scanf("%d %c", &side, &patten);    while ((0 != side) && ('0' != patten)){        mydraw(side, patten);        printf("please enter the side and the patten(eg 3 #): ");        scanf("%d %c", &side, &patten);    }    return 0;}int mydraw(int len, char pen){    for (int i = 0; i < len; i++){        for (int i = 0; i < len; i++)            printf("%c", pen);        printf("\n");    }    return 0;}