save project

feibonaqie.py

+def func(n):
+    if n<=2:
+        return 1
+    else:
+        result=func(n-1)+func(n-2)
+        return result
+for i in range(20):
+    if func(i)>=20:
+        print('需要'+str(i)+'个月')
+        break
+