save project

diy1.py

 #定义一个函数sum_numbers()
 #要求这个函数能接收一个名为num的整型参数
 #要求这个函数能计算1+2+3+……+num的结果
-
+def sum_numbers(sb):
+    if sb ==10: 
+        return 1
+    num = (sum_numbers(sb+1)+1)*2
+    return num
+sum_numbers=sum_numbers(9)
+print(sum_numbers)
 

gjh.py

+import turtle
+turtle.speed(1000000000000000000000000000000000000)
+turtle.shape("turtle")
+a=250
+for i in range(2500):
+    turtle.circle(a)
+    a=a-1
+    turtle.lt(1)