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一、代码示例
#include <stdio.h> int main() { for(double y = 1.5; y > -1.5; y -= 0.1) {
for(double x = -1.5; x < 1.5; x += 0.05) { double a = x * x + y * y - 1;
putchar(a * a * a - x * x * y * y * y <= 0.0f? '+' : ' '); } putchar('\n'); }
return 0; }
二、运行结果
三、初学理解
1、建立c语言的头文件，意思好取用公用包含的标准输出输入文件<stdio.h>；
2、声明一个main函数，该函数的返回值是int类型；
3、建立两个double类型的for循环，x和y轴把铺满，putchar输出‘\n’换行，1.5为完美心形的小数；
4、根据画心形线六次函数 (x^2+y^2-1)^3-x^2y^3=0.，将x * x + y * y - 1赋给double类型的变量a；
5、再次根据上一步的画心形线六次函数，利用putchar输出函数打印字符，在心形线内输出'+'，否则输出'空格'；
6、返回值int，程序结束。
