... 继承的问题 (The Inheritance Problem.) 使用继承性 (Working with Inheritance) 4。高级特征 (Advanced Features) ...
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什么时候才应该使用继承性？
因为窗体是类，所以可以使用继承性在现有窗体的基础上定义新窗体。
Because forms are classes, you can use inheritance to define new forms based on existing forms.
由于这种继承性，开发人员使用强类型数据集不会丢失任何功能。
Because of this inheritance, developers do not lose any functionality by using a strongly typed DataSet.
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