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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
 
+
+    temp = sum_numbers(num-1)
+    return num +temb
+result = sum_numbers(10)
+print(result)
+def func(n)
+    if n<2
+    print(result)
\ No newline at end of file