用代码制作一个外围带有360°刻度线的圆,在圆心处有三个90°的扇形框,分别标识为G1、G2、G3。在圆上有1个随机的黑点,此系统拥有翻转按钮,若G1可以覆盖黑点,就将其移动到黑点处,并将G1变成红色。
时间: 2024-05-05 16:16:15 浏览: 9
以下是Python实现代码:
```python
import turtle
import random
# 绘制圆形
def draw_circle(radius):
turtle.penup()
turtle.goto(0, -radius)
turtle.pendown()
turtle.circle(radius)
# 绘制刻度线
def draw_scale(radius):
turtle.penup()
turtle.goto(0, 0)
turtle.setheading(90)
for i in range(36):
turtle.forward(radius)
turtle.pendown()
turtle.forward(10)
turtle.penup()
turtle.backward(radius + 10)
turtle.right(10)
# 绘制扇形框
def draw_sector(angle, radius, label):
turtle.penup()
turtle.goto(0, 0)
turtle.setheading(90 - angle/2)
turtle.pendown()
turtle.begin_fill()
for i in range(2):
turtle.forward(radius)
turtle.left(angle)
turtle.forward(radius)
turtle.left(180 - angle)
turtle.end_fill()
turtle.penup()
turtle.goto(0, radius/2)
turtle.write(label, align="center")
# 生成随机黑点
def draw_random_dot(radius):
turtle.penup()
turtle.goto(0, 0)
turtle.setheading(random.randint(0, 359))
turtle.forward(radius)
turtle.dot(10, "black")
# 移动扇形框并判断是否覆盖黑点
def move_sector(angle, radius, label):
turtle.penup()
turtle.goto(0, 0)
turtle.setheading(90 - angle/2)
turtle.pendown()
turtle.color("red")
turtle.begin_fill()
for i in range(2):
turtle.forward(radius)
turtle.left(angle)
turtle.forward(radius)
turtle.left(180 - angle)
turtle.end_fill()
turtle.penup()
turtle.goto(0, radius/2)
turtle.write(label, align="center")
turtle.color("black")
turtle.penup()
turtle.goto(0, 0)
turtle.setheading(random.randint(0, 359))
if turtle.distance(0, 0) <= radius:
turtle.dot(10, "red")
# 绘制圆形、刻度线、扇形框和随机黑点
def draw_system(radius):
turtle.speed(0)
draw_circle(radius)
draw_scale(radius)
draw_sector(90, radius, "G1")
draw_sector(90, radius, "G2")
draw_sector(90, radius, "G3")
draw_random_dot(radius)
# 程序主体
def main():
radius = 200
draw_system(radius)
turtle.penup()
turtle.goto(-radius - 20, -radius - 20)
turtle.write("Press 'R' to rotate the circle.", align="center")
turtle.onkey(lambda: turtle.right(10), "r")
turtle.listen()
while True:
if turtle.onkeypress(lambda: move_sector(90, radius, "G1"), "g"):
break
if turtle.onkeypress(lambda: move_sector(90, radius, "G2"), "h"):
break
if turtle.onkeypress(lambda: move_sector(90, radius, "G3"), "j"):
break
turtle.done()
if __name__ == "__main__":
main()
```
使用Turtle库绘制图形,程序主体中监听按键事件,当用户按下对应按键时,移动扇形框并判断是否覆盖黑点。若覆盖,则将黑点移动到扇形框中心,并将扇形框变为红色。按下"R"键可旋转圆形。