save project

quiz.py

@@ -5,4 +5,6 @@ print(len(list_hero))
 print(len(dict_hero))
 print(len(dict_hero))
 dict_hero['周亮']=100
 dict_hero['周亮']=100
 print(dict_hero)
 print(dict_hero)
-dict_hero['马牛逼]=1234
+dict_hero['马牛逼]=1234
\ No newline at end of file
+if '孙五' in dict_hero:
+    print(dict_hero['孙五'])
\ No newline at end of file