save project

my_tree.py

@@ -8,23 +8,33 @@ w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 
 # 移动到起点
+t.speed(0)
 t.left(90)
 t.up()
 t.backward(150)    # 后退
 t.down()
 def shu(n):
-    if n >= 50:
+    if n >= 0:
+        if n<=12:
+            li=['snow','lightcoral']
+            se=random.choice(li)
+            t.color(se)
+            t.pensize(n/3)
+        else:
+            t.color('sienna')
+            t.pensize(n/10)
+        t.pensize(n/10)
         t.forward(n)
         jiao=random.randint(0,30)
-        chang=random.randint(1,15)
+        chang=random.randint(5,15)
         t.right(jiao)
-        shu(n-10)
+        shu(n-chang)
         t.left(2*jiao)
-        shu(n-10)
+        shu(n-chang)
         t.right(jiao)
         t.penup()
         t.backward(n)
         t.pendown()
-shu(100)
+shu(80)
 
 turtle.done()