C++命令行画心形<转载>

#include <stdio.h>

int main()
{
        for (float y = 1.5f; y > -1.5f; y -= 0.1f)
        {
                for (float x = -1.5f; x < 1.5f; x += 0.05f)
                {
                        float z = x * x + y * y - ;
                        float f = z * z * z - x * x * y * y * y;
                        putchar(f <= 0.0f ? ".:-=+*#%@"[(int)(f * -8.0f)] : ' ');
                }

                putchar('\n');
        }
}

#include <stdio.h>

int main()
{
        for (float y = 1.5f; y > -1.5f; y -= 0.1f)
        {
                for (float x = -1.5f; x < 1.5f; x += 0.05f)
                {
                        float z = x * x + y * y - ;
                        float f = z * z * z - x * x * y * y * y;
                        putchar(f <= 0.0f ? ".:-=+*#%@"[(int)(f * -8.0f)] : ' ');
                }

                putchar('\n');
        }
}

#include <stdio.h>
#include <math.h>

float f(float x, float y, float z)
{
        float a = x * x + 9.0f / 4.0f * y * y + z * z - ;

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()
{
        for (float z = 1.5f; z > -1.5f; z -= 0.05f)
        {
                for (float x = -1.5f; x < 1.5f; x += 0.025f)
                {
                        float v = f(x, 0.0f, z);
                        if (v <= 0.0f)
                        {
                                float y0 = h(x, z);
                                float ny = 0.01f;
                                float nx = h(x + ny, z) - y0;
                                float nz = h(x, z + ny) - y0;
                                float nd = 1.0f / sqrtf(nx * nx + ny * ny + nz * nz);
                                float d = (nx + ny - nz) * nd * 0.5f + 0.5f;
                                putchar(".:-=+*#%@"[(int)(d * 5.0f)]);
                        }
                        else
                                putchar(' ');
                }

                putchar('\n');
        }
}

#include <math.h>

float f(float x, float y, float z)
{
        float a = x * x + 9.0f / 4.0f * y * y + z * z - ;

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()
{
        FILE* fp = fopen("heart.ppm", "w");
        int sw = , sh = ;
        fprintf(fp, "P3\n%d %d\n255\n", sw, sh);

        for (int sy = ; sy < sh; sy++)
        {
                float z = 1.5f - sy * 3.0f / sh;
                for (int sx = ; sx < sw; sx++)
                {
                        float x = sx * 3.0f / sw - 1.5f;
                        float v = f(x, 0.0f, z);
                        int r = ;
                        if (v <= 0.0f)
                        {
                                float y0 = h(x, z);
                                float ny = 0.001f;
                                float nx = h(x + ny, z) - y0;
                                float nz = h(x, z + ny) - y0;
                                float nd = 1.0f / sqrtf(nx * nx + ny * ny + nz * nz);
                                float d = (nx + ny - nz) / sqrtf() * nd * 0.5f + 0.5f;
                                r = (int)(d * 255.0f);
                        }

                        fprintf(fp, "%d 0 0 ", r);
                }

                fputc('\n', fp);
        }
        fclose(fp);
}

#include <stdio.h>
#include <math.h>
#include <windows.h>
#include <tchar.h>

float f(float x, float y, float z)
{
    float a = x * x + 9.0f / 4.0f * y * y + z * z - ;

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[][] = { _T(' ') };
    _TCHAR ramp[] = _T(".:-=+*#%@");

    for (float t = 0.0f;; t += 0.1f)
    {
        int sy = ;
        float s = sinf(t);
        float a = s * s * s * s * 0.2f;
        for (float z = 1.3f; z > -1.2f; z -= 0.1f)
        {
            _TCHAR* p = &buffer[sy++][];
            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);
                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)];
                }
                else
                    *p++ = ' ';
            }
        }

    for (sy = ; sy < ; sy++)
    {
        COORD coord = { , sy };
        SetConsoleCursorPosition(o, coord);
        WriteConsole(o, buffer[sy], , NULL, );
    }
    Sleep();
    }
}

#include<stdio.h>
#include <Windows.h>
#include <math.h>
#define Maxnum 1800
#define PI 3.1415926
int Nownum;
char *buff[Maxnum];

void main()
{
void SetToNum(int SetNum);//300M 每格子 共9个格子
Nownum=;
int ix;ix=;
DWORD startTime = ;
double x=-1.11;
double y=;
startTime = GetTickCount(); //毫秒数

while()
{
if ( ((GetTickCount() - startTime)%) <= ){
if (ix%==){
y=((pow(abs(x),2.0/)+sqrt(pow(abs(x),4.0/)-*(x*x-)))/);// x^(2)^(1/3)/2+sqrt(x^(4)^(1/3)-4*(x^2-1))/2;//y+
}
else{
y=((pow(abs(x),2.0/)-sqrt(pow(abs(x),4.0/)-*(x*x-)))/);// x^(2)^(1/3)/2-sqrt(x^(4)^(1/3)-4*(x^2-1))/2;//y-
}

SetNum=(int)Maxnum/*(+y/1.3);
SetToNum(SetNum);

x=x+0.1;ix++;
if (x>1.11){SetNum=;SetToNum(SetNum);x=-1.11;printf("Pauseing:10s\n");Sleep();}
printf("Nownum:%d(%f)\n" ,Nownum,x);
}
}

}

void SetToNum(int SetNum)
{
if (SetNum>Maxnum){printf("Error:SetNum>MaxNum!\n");return;}
if (Nownum<SetNum)
{
for (Nownum++;Nownum<=SetNum;Nownum++)
{
buff[Nownum]= new char[*];
}
Nownum--;
}
else if (Nownum>SetNum)
{
for (;Nownum>SetNum;Nownum--)
{
delete buff[Nownum];
}
}
}

文章来源：https://www.zhihu.com/people/miloyip/activities