save project

123.py

+dict={'苹果':10,'雪梨':12,'香蕉':15}
+while True:
+    k=input("请输入水果名称:")
+    n=input("请输入价格:")
+    if k in dict:
+        if int(n)<dict[k]:
+            print('降价了')
+        if int(n)>dict[k]:
+            print('涨价了')
+        if int(n)==dict[k]:
+            print('原价')
+    else:
+        dict[k]=int(n)
\ No newline at end of file