save project

quiz.py

 # 直接运行以下代码，说说你的发现：
 # 直接运行以下代码，说说你的发现：
 list_hero=['赵一',30,'丁二',37,'孙五',52,'王猛',89,'周亮',98]
 list_hero=['赵一',30,'丁二',37,'孙五',52,'王猛',89,'周亮',98]
-I = {'赵一':30,'丁二':37,'孙五':52,'王猛':89,'周亮':98}
-I["赵一"]=1000
-print(I["孙五"])
+I = {'赵一':30,'u':37,'孙五':52,'王猛':89,'周亮':98}
+I["r"]=250
+if "u" in I:
\ No newline at end of file
+    print(I["u"])
\ No newline at end of file