C语言打印矩形、长方形、平行四边形、各种三角形

绝地灬酷狼 2022-06-01 12:40 227阅读 0赞

矩形：

#define _CRT_SECURE_NO_WARNINGS
    #include<stdio.h>
    #include<stdlib.h>
    int main()
    {
    	int i, j, n;
    	printf("请输入要打印矩形的行数：");
    	scanf("%d", &n);
    	for (i = 1; i <= n; i++)
    	{
    		for (j = 1; j <= n; j++)
    		{
    			printf("* ");
    		}
    		printf("\n");
    	}
    	system("pause");
    	return 0;
    }

![Image 1][] ![SouthEast][]

长方形：

#define _CRT_SECURE_NO_WARNINGS
    #include<stdio.h>
    #include<stdlib.h>
    int main()
    {
    	int i, j, m,n;
    	printf("请输入要打印的长方形的长和宽：");
    	scanf("%d%d", &m,&n);
    	for (i = 1; i <= m; i++)
    	{
    		for (j = 1; j <= n; j++)
    		{
    			printf(" *");
    		}
    		printf("\n");
    	}
    	system("pause");
    	return 0;
    }

![Image 1][] ![SouthEast 1][]

平行四边形：

#define _CRT_SECURE_NO_WARNINGS
    #include<stdio.h>
    #include<stdlib.h>
    int main()
    {
    	int i, j, n;
    	printf("请输入要打印平行四边形的行数：");
    	scanf("%d", &n);
    	for (i = 1; i <= n; i++)
    	{
    		for (j = 1; j <= n-i; j++)
    		{
    			printf(" ");
    		}
    		for (j = 1; j <= n; j++)
    		{
    			printf("* ");
    		}
    		printf("\n");
    	}
    	system("pause");
    	return 0;
    }

![SouthEast 2][]  
正等腰三角形：

#define _CRT_SECURE_NO_WARNINGS
    #include<stdio.h>
    #include<stdlib.h>
    int main()
    {
    	int i, j, n;
    	printf("请输入要打印正等腰三角形的行数：");
    	scanf("%d", &n);
    	for (i = 1; i <= n; i++)
    	{
    		for (j = 1; j <= n-i; j++)
    		{
    			printf(" ");
    		}
    		for (j = 1; j <= 2 * i - 1; j++)
    		{
    			printf("*");
    		}
    		printf("\n");
    	}
    	system("pause");
    	return 0;
    }

![SouthEast 3][]

倒等腰三角形：

#define _CRT_SECURE_NO_WARNINGS
    #include<stdio.h>
    #include<stdlib.h>
    int main()
    {
    	int i, j, n;
    	printf("请输入要打印倒等腰三角形的行数：");
    	scanf("%d", &n);
    	for (i = 1; i <= n; i++)
    	{
    		for (j = 1; j <= i-1; j++)
    		{
    			printf(" ");
    		}
    		for (j = 1; j <= 2 * n -2*i+1; j++)
    		{
    			printf("*");
    		}
    		printf("\n");
    	}
    	system("pause");
    	return 0;
    }

![SouthEast 4][]

[Image 1]: 
[SouthEast]: /images/20220601/7b6c4b1ba1b643e086ba3d3e558a87f9.png
[SouthEast 1]: /images/20220601/e12bd0edbebc4daa9b500e8719747752.png
[SouthEast 2]: /images/20220601/729a08bcb73d4502bcaf9bdd32e3cb21.png
[SouthEast 3]: /images/20220601/21ab60a6fb8843ac9226f6502a7e5f0f.png
[SouthEast 4]: /images/20220601/4e588f4f7d964278961a1ece1839cefc.png