Python (使用turtle库)
```python
import turtle
def draw_star(size):
angle = 144 五角星的内角为144度
turtle.penup()
turtle.goto(0, -size) 将画笔移动到起始位置
turtle.pendown()
for _ in range(5):
turtle.forward(size) 向前移动size距离
turtle.right(angle) 向右转动angle度
turtle.done() 完成绘制
def main():
turtle.speed(1) 设置绘制速度
turtle.penup()
turtle.goto(-50, 0) 移动画笔的起始位置
turtle.pendown()
draw_star(100) 绘制大小为100的五角星
if __name__ == "__main__":
main()
```
C语言
```c
include
void calculateStarCoordinates(int x, int y, int radius) {
double angle = 0.0;
int i;
double x1, y1, x2, y2;
for (i = 0; i < 6; i++) {
x1 = x + radius * cos(angle);
y1 = y + radius * sin(angle);
x2 = x + radius * cos(angle + 180);
y2 = y + radius * sin(angle + 180);
printf("(%f, %f) ", x1, y1);
angle += 72;
}
printf("\n");
}
int main() {
int size = 5; // 五角星的大小
int i, j;
for (i = 1; i <= 2 * size - i; i--) {
for (j = 1; j <= size - i; j++) {
if (i == 1 || i == size || j == i || j == 2 * size - i) {
printf("* ");
} else {
printf(" ");
}
}
printf("\n");
}
return 0;
}
```
Java (使用turtle库)
```java
import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class Star {
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> {
JFrame frame = new JFrame("Star Drawing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400, 400);
frame.addKeyListener(new KeyListener() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
System.exit(0);
}
}
@Override
public void keyReleased(KeyEvent e) {
}
@Override
public void keyTyped(KeyEvent e) {
}
});
frame.setVisible(true);
Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_SPACE);
robot.keyRelease(KeyEvent.VK_SPACE);
});
}
}
```
这些代码示例分别使用Python的turtle库、C语言和Java的Swing库来绘制五角星。你可以根据自己的需求和编程环境选择合适的代码进行尝试。