auto save

my_t.py

+import turtle
+
+#pen = turtle.Turtle()
+pen = turtle.Pen()
+pen.color('sienna')
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+
+# 移动到起点
+pen.left(90)
+#pen.up()
+pen.penup()
+pen.backward(150)    # 后退
+pen.pendown()
+#pen.down()
+
+pen.pensize(7)
+pen.speed(1)
+
+#画树
+pen.forward(100)
+#画出右边树枝并返回
+pen.right(30)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+#画出左边树枝并返回
+pen.left(60)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+
+#返回起点
+pen.right(30)
+pen.penup()
+pen.backward(100)
+pen.pendown()
+
+
+
+turtle.done()

my_t2.py

+import turtle
+
+def tree(n):
+    if n>=30:
+        pen.forward(n)
+        #画出右边树枝并返回
+        pen.right(30)
+        tree(n-10)
+        #向左
+        pen.left(60)
+        tree(n-10)
+        #向右
+        pen.right(30)
+        pen.penup()
+        pen.backward(n)
+        pen.pendown()
+
+
+
+#pen = turtle.Turtle()
+pen = turtle.Pen()
+pen.pensize(7)
+pen.speed(1)
+pen.color('sienna')
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+
+# 移动到起点
+pen.left(90)
+#pen.up()
+pen.penup()
+pen.backward(150)    # 后退
+pen.pendown()
+#pen.down()
+tree(60)
+
+
+'''
+#画树
+pen.forward(100)
+#画出右边树枝并返回
+pen.right(30)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+#画出左边树枝并返回
+pen.left(60)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+
+#返回起点
+pen.right(30)
+pen.penup()
+pen.backward(100)
+pen.pendown()
+'''
+
+
+turtle.done()

my_tree.py

 import turtle
 
-pen = turtle.Turtle()
+#pen = turtle.Turtle()
+pen = turtle.Pen()
 pen.color('sienna')
 # 画布大小
 w = turtle.Screen()
@@ -8,8 +9,26 @@ w.bgcolor('wheat')      # wheat小麦
 
 # 移动到起点
 pen.left(90)
-pen.up()
+#pen.up()
+pen.penup()
 pen.backward(150)    # 后退
-pen.down()
+pen.pendown()
+#pen.down()
+
+pen.pensize(7)
+pen.speed(1)
+
+#画出二叉树
+pen.forward(100)
+pen.right(30)
+pen.forward(50)
+pen.goto(0,-50)
+pen.penup()
+pen.left(60)
+pen.pendown()
+pen.forward(50)
+pen.penup()
+pen.goto(0,-150)
+
 
 turtle.done()

my_yinghua.py

+import turtle
+import random
+
+def tree(n):
+    if n >= 0:
+        if n <= 12:
+            color_list = ['snow', 'lightcoral']
+            color = random.choice(color_list)
+            pen.color(color)
+            pen.pensize(n / 3)
+        else:
+            pen.color('sienna')  # 赭(zhě)色
+            pen.pensize(n / 10) 
+
+
+        pen.forward(n)
+        #画出右边树枝并返回
+        #随机樱花树的树杈的角度
+        angle = random.randint(1,30)
+        #随机樱花数树枝的随机长度
+        length = random.randint(1,15)
+        pen.right(angle)
+        tree(n-length)
+        #向左
+        pen.left(2*angle)
+        
+        tree(n-length)
+        #
+        pen.right(angle)
+        pen.penup()
+        pen.backward(n)
+        pen.pendown()
+
+
+#pen = turtle.Turtle()
+pen = turtle.Pen()
+# pen.pensize(7)
+pen.speed(1000)
+pen.color('sienna')
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+
+# 移动到起点
+pen.left(90)
+#pen.up()
+pen.penup()
+pen.backward(150)    # 后退
+pen.pendown()
+#pen.down()
+tree(60)
+
+
+'''
+#画树
+pen.forward(100)
+#画出右边树枝并返回
+pen.right(30)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+#画出左边树枝并返回
+pen.left(60)
+pen.forward(50)
+pen.penup()
+pen.backward(50)
+pen.pendown()
+
+#返回起点
+pen.right(30)
+pen.penup()
+pen.backward(100)
+pen.pendown()
+'''
+
+
+turtle.done()

test.py

+def f(n):
+    if n==1:
+        return 1
+    y = n*f(n-1)
+    return y
+z = f(3)
+print(z)
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