您将如何实现 IEnumerator 接口?

本文介绍了您将如何实现 IEnumerator 接口?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我有一个将对象映射到对象的类，但与字典不同的是，它以两种方式映射它们.我现在正在尝试实现一个自定义的 IEnumerator 接口来遍历这些值.I have a class that map objects to objects, but unlike dictionary it maps them both ways. I am now trying to implement a custom IEnumerator interface that iterates through the values.public class Mapper<K,T> : IEnumerable<T>, IEnumerator<T>{ C5.TreeDictionary<K,T> KToTMap = new TreeDictionary<K,T>(); C5.HashDictionary<T,K> TToKMap = new HashDictionary<T,K>(); public void Add(K key, T value) { KToTMap.Add(key, value); TToKMap.Add(value, key); } public int Count { get { return KToTMap.Count; } } public K this[T obj] { get { return TToKMap[obj]; } } public T this[K obj] { get { return KToTMap[obj]; } } public IEnumerator<T> GetEnumerator() { return KToTMap.Values.GetEnumerator(); } public T Current { get { throw new NotImplementedException(); } } public void Dispose() { throw new NotImplementedException(); } object System.Collections.IEnumerator.Current { get { throw new NotImplementedException(); } } public bool MoveNext() { ; } public void Reset() { throw new NotImplementedException(); }}推荐答案首先，不要让你的集合对象实现 IEnumerator.这会导致错误.(考虑两个线程在同一个集合上迭代的情况).First, don't make your collection object implement IEnumerator<>. This leads to bugs. (Consider the situation where two threads are iterating over the same collection).事实证明，正确实现枚举器并非易事，因此 C# 2.0 添加了基于yield return"语句的特殊语言支持.Implementing an enumerator correctly turns out to be non-trivial, so C# 2.0 added special language support for doing it, based on the 'yield return' statement.Raymond Chen 最近的系列博客文章(C# 中迭代​​器的实现及其后果")是一个了解速度的好地方.Raymond Chen's recent series of blog posts ("The implementation of iterators in C# and its consequences") is a good place to get up to speed.第 1 部分:https://web.archive.org/web/20081216071723/http://blogs.msdn.com/oldnewthing/archive/2008/08/12/8849519.aspx第 2 部分:https://web.archive.org/web/20080907004812/http://blogs.msdn.com/oldnewthing/archive/2008/08/13/8854601.aspx第 3 部分:https://web.archive.org/web/20080824210655/http://blogs.msdn.com/oldnewthing/archive/2008/08/14/8862242.aspx第 4 部分:https://web.archive.org/web/20090207130506/http://blogs.msdn.com/oldnewthing/archive/2008/08/15/8868267.aspx 这篇关于您将如何实现 IEnumerator 接口?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！