save project

quiz.py

-# 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]
-dict_hero = {'赵一':30,'丁二':37,'孙五':52,'王猛':89,'周亮':98}
-print(len(list_hero))
-print(len(dict_hero))
+cost={'苹果':5.2,'山竹':12.9,'香蕉':2.4,'荔枝':15,'葡萄':9.3,'桂圆':8,'蓝莓':10,'李子':8}
+k=input('请输入水果名称')
+v=input('请输入水果价钱')
+if k in cost:
+    if float(v)<cost[k]:
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+        cost[k]=float(v)
+        print(k+'降价了,现价'+v+'元')
+    else:
+        print(k+'涨价了,我们不买')
+else:
+    cost[k] = float(v)
+    print(k+'的价钱'+v+'元已上传')
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