问题是这样的：使用嵌套循环输出一个用星号绘制的矩形，它的宽和高由用户输入，例如******
                                                                              *    *
                                                                              *    *
                                                                              *    *
                                                                              *    *
                                                                              ******
然后我自己写了一部分就不知道怎么写了，哪位帮我看看怎么写下去呢，谢了。
                                     程序#include<stdio.h>
                                          int main(void)
                                         {
                                           int n,h,i;
                                           printf("please input n:   h:   ");
                                           scanf("%d,%d",&n,&h);
                                           for(i=0;i<=h;++i)
                                           printf("\n*  *");
                                           while(n--)putchar('*');

                                           }
刚开始接触c语言，还望大家见谅！

你要知道，用printf()只能一行一行地从上向下输出，就如卒子，只能前进，不能回头。明白了这点，重新设计一下自己的思路吧。

动动脑筋呗。相信楼主能做出来。

谢了。。做出来了，虽然方法很笨。。

#include <stdio.h>

int main (void)
{
    int width;
    int heighth;
    int y;
    int x;
   
    printf("Please input WIDTH:");
    scanf("%d", &width);
    printf("Please input HEIGHTH:");
    scanf("%d", &heighth);
   
    for (y = 1; y <= heighth; y++)
    {
        for (x = 1; x <= width; x++)
        {
            if (x-1==0 || x-width==0 || y-1==0 || y-heighth==0)
                printf("%-2c", '*');
            else
                printf("%-2c", ' ');
        }
        printf("\n");
    }

    return 0;
}