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(num):
-    if num==1:
-        return 1
-    new_num=sum_numbers(num-1)+num
-    return new_num
-print(sum_numbers(100))
+# def sum_numbers(num):
+#     if num==1:
+#         return 1
+#     new_num=sum_numbers(num-1)+num
+#     return new_num
+# print(sum_numbers(1000))
+import turtle
+pen=turtle.Pen()
+pen.color("sienna")
+w=turtle.Screen()
+w.bgcolor("wheat")
+pen.left(90)
+pen.up()
+pen.backward(150)
+pen.down()
+pen.forward(100)
+pen.right(30)
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.down()
+pen.left(60)
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.down()
+pen.right(30)
+pen.up()
+pen.backward(100)
+pen.down()
+turtle.done()