C语言——简单计算器

太过爱你忘了你带给我的痛 2023-01-14 01:36 108阅读 0赞

## **实现效果如图:** ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MzM5MTk1Nw_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][20210419161353346.png]  
**实现代码如下：**

#include<stdio.h>
    #include<windows.h>//gotoxy
    #include<conio.h>
    #define width 80
    #define height 30
    void gotoxy(int x, int y);
    void GreateFrame()
    { 
    	int i = 0;
    	for (i = 0 ; i <  width; i += 2)
    	{ 
    		gotoxy(i, 0); printf("■");
    		gotoxy(i, height); printf("■");
    	}
    	for (i = 0; i < height + 1; i++)
    	{ 
    		gotoxy(0 , i); printf("■");
    		gotoxy(width, i); printf("■");
    	}
    }
    void Add()
    { 
    	float i, j;
    	printf("*加法运算*\n");
    	scanf_s("%f %f", &i, &j);
    	printf("%5.2f + %5.2f=%5.2f\n", i, j, i+j);
    	_getch();
    }
    void Sub()
    { 
    	float i, j;
    	printf("*减法运算*\n");
    	scanf_s("%f %f", &i, &j);
    	printf("%5.2f - %5.2f=%5.2f\n", i, j, i -j);
    	_getch();
    }
    void Mul()
    { 
    	float i, j;
    	printf("*乘法运算*\n");
    	scanf_s("%f %f", &i, &j);
    	printf("%5.2f * %5.2f=%5.2f\n", i, j, i * j);
    	_getch();
    }
    void Div()
    { 
    	float i, j;
    	printf("*除法运算*\n");
    	scanf_s("%f %f", &i, &j);
    	printf("%5.2f / %5.2f=%5.2f\n", i, j, i / j);
    	_getch();
    }
    int main(int argc, char* argv[])
    { 
    	int choose;
    	while (1)
    	{ 
    		GreateFrame();
    		gotoxy(width / 3, height / 3 + 2);
    		printf("1.加法");
    		gotoxy(width / 3, height / 3 + 4);
    		printf("2.减法");
    		gotoxy(width / 3, height / 3 + 6);
    		printf("3.乘法");
    		gotoxy(width / 3, height / 3 + 8);
    		printf("4.除法");
    		gotoxy(width / 3, height / 3 + 10);
    		printf("5.退出程序");
    		gotoxy(width / 3, height / 3);
    		printf("请选择你要计算的方式:( )\b\b");
    		scanf_s("%d", &choose);
    		switch (choose)
    		{ 
    		case 1:system("cls");
    				Add(); break;
    		case 2:system("cls");
    				Sub(); break;
    		case 3:system("cls");
    				Mul(); break;
    		case 4:system("cls");
    				Div(); break;
    		case 5:
    				exit(0);
    		}
    		system("cls");
    	}
    }
    void gotoxy(int x, int y)
    { 
    	COORD POS;
    	POS.X = x;
    	POS.Y = y;
    	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),POS);
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MzM5MTk1Nw_size_16_color_FFFFFF_t_70]: /images/20221022/8e568e9aa5184f70964b5a62b8cb4bc9.png
[20210419161353346.png]: /images/20221022/221e5ae6777342f8aa33abdf424998a6.png