save project

quiz.py

-i = {'q':1,'W':2,'e':3,'r':4,'t':5,'y':6}
-print(i)
-
-print(i['e'])
-
-i['e'] = 5
-print(i)
\ No newline at end of file
+q = {'辣条':3,'薯片':6,'烤肠':5,'鸡腿':8,'卤蛋':2,'橙汁':9,'酸奶':7}
+k = input("请问您要买什么东西？")
+v = input("请输入物品价格")
+if k in q:
+    if int(v)<q[k]:
+        q[k] = int(v)
+        print(k+'降价了,现在'+v+'元')
+    else:
+        print(k+'涨价了')
+else:
+    q[k] = int(v)
+    print(k+'的价钱'+v+'元已上传')