void是一个关键字，在Java中它表示“无返回值”或“空”，它主要用在两个地方：方法声明中return语句中下面我们分别进行详细说明，在方法声明中：表示该方法不返回任何值这是void最常见的用法，当你定义一个方法时，如果你希望...

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