本文章分为两部分：第一部分为实现多彩的心，第二部分是实现心得跳动，两个代码均独立运行
本篇文章转载自公众号： C语言程序设计基础知识
（一）C语言实现多彩的心
实现过程其实很简单
首先使用for循环绘制心形
for (y = 1.5f; y > -1.5f; y -= 0.1f){for (x = -1.5f; x < 1.5f; x += 0.05f){z = x * x + y * y - 1;f = z * z * z - x * x * y * y * y;putchar(f <= 0.0f ? "*********"[(int)(f * -8.0f)] : ' ');}putchar('\n');}
然后使用for循环进行切换cmd窗口颜色就可以做到
for (time = 0; time < 99999999; time++);system("color b");
完整代码如下：
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#define I 20
#define R 340
#include <string.h>
int main()
{char answer[10];printf(" 自从遇见了你，就不停地想你\n");printf(" 编一个死循环\n 让我们一直走，一直走。");printf(" 如果你也愿意\n 输入yes,你可以看到我的真心\n");scanf("%s", answer);if (!(answer[0] == 'y' && answer[1] == 'e' && answer[2] == 's')){printf("555 \n");return 0;}//首先使用for循环打印出心形float y, x, z, f;for (y = 1.5f; y > -1.5f; y -= 0.1f){for (x = -1.5f; x < 1.5f; x += 0.05f){z = x * x + y * y - 1;f = z * z * z - x * x * y * y * y;putchar(f <= 0.0f ? "*********"[(int)(f * -8.0f)] : ' ');}putchar('\n');}//循环变色long time;for (;;){system("color a");for (time = 0; time < 99999999; time++);system("color b");for (time = 0; time < 99999999; time++);system("color c");for (time = 0; time < 99999999; time++);system("color d");for (time = 0; time < 99999999; time++);system("color e");for (time = 0; time < 99999999; time++);system("color f");for (time = 0; time < 99999999; time++);system("color 0");for (time = 0; time < 99999999; time++);system("color 1");for (time = 0; time < 99999999; time++);system("color 2");for (time = 0; time < 99999999; time++);system("color 3");for (time = 0; time < 99999999; time++);system("color 4");for (time = 0; time < 99999999; time++);system("color 5");for (time = 0; time < 99999999; time++);system("color 6");for (time = 0; time < 99999999; time++);system("color 7");for (time = 0; time < 99999999; time++);system("color 8");for (time = 0; time < 99999999; time++);system("color 9");}getchar();return 0;
}
效果如下：
（二）如何让心跳动起来
一颗不会动的心怎么能显得足够真（zhuang）诚（B）呢？
让我们使用数学函数巧妙地让这颗心动起来。
完整代码如下：
#include <stdio.h>
#include <math.h>
#include <windows.h>
#include <tchar.h>
#include <stdlib.h>
#include <string.h>float f(float x, float y, float z) {float a = x * x + 9.0f / 4.0f * y * y + z * z - 1;return a * a* a - x * x * z * z * z - 9.0f / 80.0f * y * y * z * z * z;
}float h(float x, float z) {for (float y = 1.0f; y >= 0.0f; y -= 0.001f)if (f(x, y, z) <= 0.0f)return y;return 0.0f;
}int main() {HANDLE o = GetStdHandle(STD_OUTPUT_HANDLE);_TCHAR buffer[25][80] = { _T(' ') };_TCHAR ramp[] = _T(".:-=++#%@"); //心 每层使用的字符int is = 0;for (float t = 0.0f;; t += 0.1f) {//两种颜色循环切换is++;if(is%2==0)system("color d");else system("color c");int sy = 0;float s = sinf(t);float a = s * s * s * s * 0.2f;//生成当前心的形态for (float z = 1.3f; z > -1.2f; z -= 0.1f) {_TCHAR* p = &buffer[sy++][0];float tz = z * (1.2f - a);for (float x = -1.5f; x < 1.5f; x += 0.05f) {float tx = x * (1.2f + a);float v = f(tx, 0.0f, tz);//如果是在心的范围中间 就计算对应的层if (v <= 0.0f) {float y0 = h(tx, tz);float ny = 0.01f;float nx = h(tx + ny, tz) - y0;float nz = h(tx, tz + ny) - y0;float nd = 1.0f / sqrtf(nx * nx + ny * ny + nz * nz);float d = (nx + ny - nz) * nd * 0.5f + 0.5f;*p++ = ramp[(int)(d * 5.0f)]; }//如果不在直接添加空格else*p++ = ' ';}}//将当前的心形打印出来 按行打印for (sy = 0; sy < 25; sy++) {COORD coord = { 0, sy };SetConsoleCursorPosition(o, coord);WriteConsole(o, buffer[sy], 79, NULL, 0);//if(sy ==12 )printf("520");}Sleep(33);}
}
效果如下：
