C语言中的简单图形打印

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1.菱形：

#include<stdio.h>int main(){int i,j,n;printf("请输入要打印的菱形行数：");scanf("%d",&n);for(i = 0;i < n;i++){for(j = 0;j < n - i;j++){printf(" ");}for(j = 0;j < 2 * i - 1;j++){printf("*");}printf("\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");}return 0;}

2.平行四边形

#include<stdio.h>int main(){int i,j,n;printf("请输入要打印的平行四边形行数：\n");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");}return 0;}

3.顶尖朝上等腰三角形

#include<stdio.h>int main(){int n,i,j;printf("请输入要打印的尖朝上的等腰三角行数：");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");}return 0;}

4.顶尖朝下等腰三角形

#include<stdio.h>int main(){int n,i,j;printf("请输入要打印的尖朝下的等腰三角行数：");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");}return 0;}

5.空心菱形

#include<stdio.h>int main(){    int i,j,k,line,m;    printf("请输入行数:");    scanf("%d",&line);    m=(line+1)/2;    for(i=1;i<=m;i++)    {        for(k=0;k<m-i;k++)        {            printf(" ");        }        printf("*");        if(i==1)        {            printf("\n");            continue;        }        for(j=0;j<2*i-3;j++)        {            printf(" ");        }        printf("*");        printf("\n");    }    for(i=m-1;i>0;i--)    {        for(k=0;k<m-i;k++)        {            printf(" ");        }        printf("*");        if(i==1)        {            printf("\n");            continue;        }        for(j=0;j<2*i-3;j++)        {            printf(" ");        }        printf("*");        printf("\n");    }    return 0;}

6.立体心形

#include <stdio.h>#include <math.h>float f(float x, float y, float z) {    float a;    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) {    float y;    for ( y = 1.0f; y >= 0.0f; y -= 0.001f)        if (f(x, y, z) <= 0.0f)        {            return y;        }    return 0.0f;}void main() {    float z,x,v,y0,ny,nx,nz,nd,d;    for ( z = 1.5f; z > -1.5f; z -= 0.05f)    {        for ( x = -1.5f; x < 1.5f; x += 0.025f)         {             v = f(x, 0.0f, z);            if (v <= 0.0f)             {                 y0 = h(x, z);                 ny = 0.01f;                 nx = h(x + ny, z) - y0;                 nz = h(x, z + ny) - y0;                 nd = 1.0f / sqrtf(nx * nx + ny * ny + nz * nz);                 d = (nx + ny - nz) * nd * 0.5f + 0.5f;                putchar(".:-=+*#%@"[(int)(d * 5.0f)]);            }            else                putchar(' ');        }        putchar('\n');    }}

注：Linux下编译时需要链接数学库，gcc xxx.c -lm 可生成a.out文件

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