auto save

star.py

-"""
-请使用turtle模块画出五角星
-"""
-import turtle
-open=turtle.pen()
-For i in range(5)
-   pen.forward(200)
-   pen.right(144)
-   pen.hideturtle()
-pen.done()
-   
\ No newline at end of file
+import turtle as tu
+ 
+roo = tu.Turtle()  # 创建对象
+wn = tu.Screen()  # 屏幕对象
+wn.bgcolor("black")  # 屏幕背景
+wn.title("分形树")
+roo.left(90)  # 移动
+roo.speed(20)  # 速度
+ 
+ 
+def draw(l):  # 以长度'l'作为参数的递归函数
+    if l < 10:
+        return
+    else:
+        roo.pensize(2)  # 设置画笔大小
+        roo.pencolor("yellow")  # 画笔颜色
+        roo.forward(l)  # 朝向
+        roo.left(30)  # 移动
+        draw(3 * l / 4)  # 绘制
+        roo.right(60)  # 移动
+        draw(3 * l / 4)  # 绘制
+        roo.left(30)  # 移动
+        roo.pensize(2)
+        roo.backward(l)  # 返回初始位置
+ 
+ 
+draw(20)  # 绘制20次
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor("magenta")  # magenta
+        roo.forward(l)
+        roo.left(30)
+        draw(3 * l / 4)
+        roo.right(60)
+        draw(3 * l / 4)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(20)
+ 
+roo.left(270)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor("red")  # red
+        roo.forward(l)
+        roo.left(30)
+        draw(3 * l / 4)
+        roo.right(60)
+        draw(3 * l / 4)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(20)
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor('#FFF8DC')  # white
+        roo.forward(l)
+        roo.left(30)
+        draw(3 * l / 4)
+        roo.right(60)
+        draw(3 * l / 4)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(20)
+ 
+ 
+########################################################
+ 
+def draw(l):
+    if (l < 10):
+        return
+    else:
+ 
+        roo.pensize(3)
+        roo.pencolor("lightgreen")  # lightgreen
+        roo.forward(l)
+        roo.left(30)
+        draw(4 * l / 5)
+        roo.right(60)
+        draw(4 * l / 5)
+        roo.left(30)
+        roo.pensize(3)
+        roo.backward(l)
+ 
+ 
+draw(40)
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(3)
+        roo.pencolor("red")  # red
+        roo.forward(l)
+        roo.left(30)
+        draw(4 * l / 5)
+        roo.right(60)
+        draw(4 * l / 5)
+        roo.left(30)
+        roo.pensize(3)
+        roo.backward(l)
+ 
+ 
+draw(40)
+ 
+roo.left(270)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(3)
+        roo.pencolor("yellow")  # yellow
+        roo.forward(l)
+        roo.left(30)
+        draw(4 * l / 5)
+        roo.right(60)
+        draw(4 * l / 5)
+        roo.left(30)
+        roo.pensize(3)
+        roo.backward(l)
+ 
+ 
+draw(40)
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(3)
+        roo.pencolor('#FFF8DC')  # white
+        roo.forward(l)
+        roo.left(30)
+        draw(4 * l / 5)
+        roo.right(60)
+        draw(4 * l / 5)
+        roo.left(30)
+        roo.pensize(3)
+        roo.backward(l)
+ 
+ 
+draw(40)
+ 
+ 
+########################################################
+def draw(l):
+    if (l < 10):
+        return
+    else:
+ 
+        roo.pensize(2)
+        roo.pencolor("cyan")  # cyan
+        roo.forward(l)
+        roo.left(30)
+        draw(6 * l / 7)
+        roo.right(60)
+        draw(6 * l / 7)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(60)
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor("yellow")  # yellow
+        roo.forward(l)
+        roo.left(30)
+        draw(6 * l / 7)
+        roo.right(60)
+        draw(6 * l / 7)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(60)
+ 
+roo.left(270)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor("magenta")  # magenta
+        roo.forward(l)
+        roo.left(30)
+        draw(6 * l / 7)
+        roo.right(60)
+        draw(6 * l / 7)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(60)
+ 
+roo.right(90)
+roo.speed(2000)
+ 
+ 
+# recursion
+def draw(l):
+    if (l < 10):
+        return
+    else:
+        roo.pensize(2)
+        roo.pencolor('#FFF8DC')  # white
+        roo.forward(l)
+        roo.left(30)
+        draw(6 * l / 7)
+        roo.right(60)
+        draw(6 * l / 7)
+        roo.left(30)
+        roo.pensize(2)
+        roo.backward(l)
+ 
+ 
+draw(60)
+wn.exitonclick()
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