save project

diy1.py

@@ -5,4 +5,12 @@ dict_hero={'猴三':10,'猴一':21,'猴五':22,'猴队长':29,'猴七':30}
 print(dict_hero['猴七'])
 dict_hero['猴七']=40
 print(dict_hero['猴七'])
-dict_hero['猴六']=40
\ No newline at end of file
+if '猴六' in dict_hero:
+    print("存在")
+else:
+    print("不存在")
+dict_hero['猴六']=40
+if '猴六' in dict_hero:
+    print("存在")
+else:
+    print("不存在")