save project

my_tree.py

 import turtle
-
+value = input('请输入珊瑚的长度，至少为大于100的整十数：')
 pen = turtle.Turtle()
 pen.color('sienna')      # sienna黄土色
 # 画布大小
@@ -18,22 +18,12 @@ def tree(n):
         pen.right(30)
         tree(n-10)
         pen.left(60)
+        tree(n-10)
+        pen.right(30)
         pen.up()
-        pen.backward(n-50)
+        pen.backward(n)
         pen.down()
-
-for i in range(5):
-    pen.forward(50)
-    pen.right(30)
-    pen.forward(50)
-    pen.up()
-    pen.backward(50)
-    pen.down()
-    pen.left(60)
-    pen.forward(50)
-    pen.backward(50)
-    pen.right(30)
-    pen.backward(50)
+tree(value)
 
 pen.hideturtle()
 turtle.done()