.NET框架类库就是这样的。它由一套庞大的、目标在于满足我们任何可以想象的编程设计所需要的类组成的。例如，.NET框架中包含了用于处理数据库的访问，实现文件系统的工作，处理文本和图形生成的类。
.NET Framework中，还拥有了可以代表所有得的基本变量的数据类型，比如字符串、整数、字节、字符和数组类。 ASP.NET技术英文文献和中文翻译(3):http://www.751com.cn/fanyi/lunwen_39264.html
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