save project

diy2.py

-# 尝试编写func()函数输出斐波那契数列的第十五个数是什么？
-# 斐波那契数列：1，1，2，3，5，8，13，21，34，55……
-
-
-def func(n):
-    a=1
-    b=1
-    v = 0
-    for i in range(n) :
-        v = a + b
-        b = v + a 
-        a = v + b
-    return a
-
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-print(func(15)) #调用函数并打印结果
-
+import turtle 
+pen = turtle.Turtle()
+pen.color("sienna")
+w=turtle.Screen()
+w.bgcolor('wheat')
+pen.left(90)
+pen.up()
+pen.backward(150)
+pen.down()
+
+
+pen.forward(100)
+pen.left(30)
+pen.forward(50)
+pen.forward(-50)
+pen.right(60)
+pen.forward(50)
+pen.forward(-50)
+pen.left(30)
+pen.forward(-100)
+turtle.done()