csharp规范20版(编辑修改稿)

csharp规范20版(编辑修改稿)内容摘要：

............................................................ 62 委托实例相等性 ............................................................................................................................ 63 明确赋值 ....................................................................................................................................... 63 方法组转换 ................................................................................................................................... 64 目录 版权所有  Microsoft Corporation 19992020。 保留所有权利。 v 委托创建表达式 .......................................................................................................................... 65 实现示例 ..................................................................................................................................... 65 22. 迭代器 ................................................................................................................................................ 69 迭代器块 ....................................................................................................................................... 69 枚举器接口 ..............................................................................................................................69 可枚举接口 ..............................................................................................................................69 产生类型 ..................................................................................................................................69 this 访问 ...................................................................................................................................70 枚举器对象 ................................................................................................................................... 70 MoveNext 方法 .........................................................................................................................70 Current 属性 .............................................................................................................................71 Dispose 方法 ............................................................................................................................71 可枚举对象 ................................................................................................................................... 72 GetEnumerator 方法 ..................................................................................................................72 yield 语句 ....................................................................................................................................... 72 明确赋值 ..................................................................................................................................74 实现示例 ....................................................................................................................................... 74 23. 分部类型 ............................................................................................................................................ 81 分部声明 ....................................................................................................................................... 81 属性 .........................................................................................................................................81 修饰符 ......................................................................................................................................82 类型参数和约束 .......................................................................................................................82 基类 .........................................................................................................................................82 基接口 ......................................................................................................................................83 成员 .........................................................................................................................................83 名称绑定 ....................................................................................................................................... 84 24. 可空类型 ............................................................................................................................................ 85 可空类型 ....................................................................................................................................... 85 成员 .........................................................................................................................................85 默认值 ......................................................................................................................................86 值类型约束 ..............................................................................................................................86 转换 .............................................................................................................................................. 86 null 文本转换 ...........................................................................................................................86 可空转换 ..................................................................................................................................86 装箱和取消装箱转换 ................................................................................................................87 允许的用户定义转换 ................................................................................................................87 用户定义转换的计算 ................................................................................................................88 提升的转换 .............................................................................................。