auto save

c.py

+import turtle
+import random
+pen = turtle.Turtle()
+pen.color('sienna')
+turtle.tracer(False)
+pen.speed(0)
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+# 移动到起点
+pen.left(90)
+pen.up()
+pen.backward(100)    # 后退
+pen.down()
+def tree(a):
+    if a>=0:
+        if a<=12:
+            c_l =["snow","lightcoral"]
+            c = random.choice(c_l)
+            pen.color(c)
+            pen.pensize(a/3)
+        else:
+            pen.color("sienna")
+            pen.pensize(a/10)
+        pen.fd(a)
+        b = random.randint(0,30)
+        c = random.randint(1,15)
+        pen.right(b)
+        tree(a-c)
+        pen.left(2*b)
+        tree(a-c)
+        pen.right(b)
+        pen.up()
+        pen.backward(a)
+        pen.down()
+tree(60)
+turtle.done()
\ No newline at end of file

my_tree.py

 import turtle
 import turtle
-
+import random
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
+turtle.tracer(False)
+pen.speed(0)
 # 画布大小
 # 画布大小
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 w.bgcolor('wheat')      # wheat小麦
-
 # 移动到起点
 # 移动到起点
 pen.left(90)
 pen.left(90)
 pen.up()
 pen.up()
-pen.backward(150)    # 后退
+pen.backward(100)    # 后退
 pen.down()
 pen.down()
-
+def tree(a):
+    if a>=0:
+        if a<=12:
+            c_l =["snow","lightcoral"]
+            c = random.choice(c_l)
+            pen.color(c)
+            pen.pensize(a/3)
+        else:
+            pen.color("sienna")
+            pen.pensize(a/10)
+        pen.fd(a)
+        b = random.randint(0,30)
+        c = random.randint(1,15)
+        pen.right(b)
+        tree(a-c)
+        pen.left(2*b)
+        tree(a-c)
+        pen.right(b)
+        pen.up()
+        pen.backward(a)
+        pen.down()
+tree(60)
 turtle.done()
 turtle.done()

u.py

+import turtle
+import random
+pen = turtle.Turtle()
+pen.color('sienna')
+turtle.tracer(False)
+pen.speed(0)
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