这是对程序员关于局部变量的预期的重大变更，具体来讲，缺少了任何将此变量声明为奇怪的、新的耐久局部变量的特殊声明。

This would be a major change to programmer expectations about local variables, especially in the absence of any special declaration that this is one of those weird new long-lived local variables.

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在类的主体中，可以声明叫做属性的特殊变量。

Within the body of a class, you can declare special variables called properties.

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例如，有些数据库在select语句上提供了特殊的语法，声明用来更新select语句所选中的行。

For example, some databases provide special syntax on the select statements to declare the intentions of updating the rows selected by the select statement.

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