save project

d.py

+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}
+a=input('输入水果名称')
+b=input('输入水果价格')
+if a in cost:
+    if int(b)>int(cost[a]):
+        int(cost[a])=int(b)
+    else:
+        print("不用改变")
+else:
+    print("我没这个东西")
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