save project

di.py

+goods={"可乐":3,"牛奶":4}
+goods.pop("牛奶")
+print(goods)
\ No newline at end of file

diy.py

@@ -4,8 +4,8 @@ cost= {'苹果':5.2,'山竹':12.9,'香蕉':2.4,'荔枝':15,'葡萄':9.3,'桂圆'
 k=input('请输入水果名称：')
 v=input('请输入水果价钱：')
 if k in cost:#补充条件判断:
-    if :
-        #更新价钱
+    if v>cost :
+        int[v]=cost#更新价钱
         print(k+'降价了，现价'+v+'元')
     else:
         print(k+'涨价了，我们不买')

diy.py1

+goods={"可乐":3,"牛奶":4}
+goods.pop("牛奶")
+print(goods)