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 peach(n):
+    if n==10:
+        return 1
+    num =(peach(n+1)+1)*2
+    return num
+
+
+peach_num = peach(1)
+print(peach_num)
+'''
+def sum_numbers(num):
+    if num == 1:
+        return 1
+    return num+sum_numbers(num -1)
+print(sum_numbers(10))