save project

sb.py

+cost={"苹果":5,"山竹":12,"菠萝":13}
+k=input("你想买啥")
+v=input("水果价格")
+if k in cost:
+    if int(v)<cost[k]:
+        cost[k]=int(v)
+        print("水果"+k+"最近价格已更新为"+v+"元")
+    else:
+        print(k+"最近涨价了,我不买")
+else:
+    cost[k]=int(v)
+    print("水果"+k+"已经上传")
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