save project

1.py

+cost={"apple":5.2,"山竹":12.9,"香蕉":2.4,"荔枝":15,"putao":9.3,"guiyuan":8,"lanmei":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]:
+    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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