Mrs. Bell: Danny, open your presents. Here's one from Mr. Jones.
贝尔太太：丹尼，打开礼物吧。这件是琼斯先生的。
HUSSEIN: I wish I had known about this place for my birthday. Ali, open your presents. Here's one.
我上次过生日的时候， 如果知道有这个地方， 多好。 阿里， 拆开你的礼物。
To open a MessageBox that presents the user with a message of Hello! When your button is clicked, you need to implement the run method as shown in listing 3.
若要在单击按钮时打开为用户演示Hello ！消息的MessageBox，需要实现run方法，如清单3所示。
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