\u4ee3\u7801\u5197\u4f59：\u4e3a\u6bcf\u79cd\u7c7b\u578b\u7f16\u5199\u51e0\u4e4e\u76f8\u540c\u7684\u7c7b\u6216\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n\u6cdb\u578b\u5b8c\u7f8e\u89e3\u51b3\u4e86\u8fd9\u4e9b\u95ee\u9898\u3002<\/p>\n
2. \u6cdb\u578b\u7684\u57fa\u672c\u8bed\u6cd5<\/h3>\n2.1 \u6cdb\u578b\u7c7b<\/h4>\n
\u5728\u7c7b\u540d\u540e\u4f7f\u7528\u5c16\u62ec\u53f7 <T> \u58f0\u660e\u7c7b\u578b\u53c2\u6570：<\/p>\n
\/\/ \u5b9a\u4e49\u4e00\u4e2a\u7b80\u5355\u7684\u6cdb\u578b\u5bb9\u5668\u7c7b
\npublic class GenericList<T>
\n{
\n private T[] items;
\n private int count = 0;<\/p>\n
public GenericList(int capacity)
\n {
\n items = new T[capacity];
\n }<\/p>\n
public void Add(T item)
\n {
\n if (count < items.Length)
\n {
\n items[count] = item;
\n count++;
\n }
\n }<\/p>\n
public T Get(int index)
\n {
\n if (index >= 0 && index < count)
\n return items[index];
\n throw new IndexOutOfRangeException();
\n }
\n}<\/p>\n
\/\/ \u4f7f\u7528\u793a\u4f8b
\nGenericList<int> intList = new GenericList<int>(10);
\nintList.Add(42);
\nint value = intList.Get(0); \/\/ \u7c7b\u578b\u5b89\u5168，\u65e0\u9700\u5f3a\u5236\u8f6c\u6362<\/p>\n
GenericList<string> stringList = new GenericList<string>(5);
\nstringList.Add("Hello");
\nstring text = stringList.Get(0);<\/p>\n
2.2 \u6cdb\u578b\u65b9\u6cd5<\/h4>\n
\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u72ec\u7acb\u4f7f\u7528\u6cdb\u578b，\u5373\u4f7f\u6240\u5728\u7c7b\u4e0d\u662f\u6cdb\u578b\u7c7b：<\/p>\n
public class Utility
\n{
\n \/\/ \u6cdb\u578b\u65b9\u6cd5：\u4ea4\u6362\u4e24\u4e2a\u53d8\u91cf\u7684\u503c
\n public static void Swap<T>(ref T a, ref T b)
\n {
\n T temp = a;
\n a = b;
\n b = temp;
\n }<\/p>\n
\/\/ \u4f7f\u7528\u793a\u4f8b
\n public static void Demo()
\n {
\n int x = 10, y = 20;
\n Swap(ref x, ref y); \/\/ \u7f16\u8bd1\u5668\u63a8\u65ad T \u4e3a int<\/p>\n
string s1 = "first", s2 = "second";
\n Swap(ref s1, ref s2); \/\/ T \u4e3a string
\n }
\n}<\/p>\n
2.3 \u6cdb\u578b\u63a5\u53e3<\/h4>\n
\u63a5\u53e3\u540c\u6837\u53ef\u4ee5\u5b9a\u4e49\u7c7b\u578b\u53c2\u6570：<\/p>\n
public interface IRepository<T>
\n{
\n T GetById(int id);
\n void Add(T entity);
\n void Update(T entity);
\n void Delete(int id);
\n}<\/p>\n
\/\/ \u5b9e\u73b0\u6cdb\u578b\u63a5\u53e3
\npublic class UserRepository : IRepository<User>
\n{
\n public User GetById(int id) { \/* \u5b9e\u73b0 *\/ }
\n public void Add(User entity) { \/* \u5b9e\u73b0 *\/ }
\n public void Update(User entity) { \/* \u5b9e\u73b0 *\/ }
\n public void Delete(int id) { \/* \u5b9e\u73b0 *\/ }
\n}<\/p>\n
3. \u7c7b\u578b\u7ea6\u675f（Constraints）<\/h3>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b，\u6cdb\u578b\u7c7b\u578b\u53c2\u6570 T \u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u3002\u4f46\u6709\u65f6\u6211\u4eec\u9700\u8981\u9650\u5236 T \u5fc5\u987b\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6，\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u7c7b\u578b\u7ea6\u675f：<\/p>\n
\/\/ T \u5fc5\u987b\u662f\u5f15\u7528\u7c7b\u578b（\u7c7b\u3001\u63a5\u53e3\u3001\u59d4\u6258\u3001\u6570\u7ec4）
\npublic class ReferenceTypeClass<T> where T : class
\n{
\n public T Instance { get; set; }
\n}<\/p>\n
\/\/ T \u5fc5\u987b\u662f\u503c\u7c7b\u578b（\u7ed3\u6784\u4f53\u3001\u679a\u4e3e），\u4e14\u4e0d\u80fd\u662f\u53ef\u7a7a\u7c7b\u578b
\npublic struct ValueTypeStruct<T> where T : struct
\n{
\n public T Value { get; set; }
\n}<\/p>\n
\/\/ T \u5fc5\u987b\u5177\u6709\u65e0\u53c2\u6784\u9020\u51fd\u6570
\npublic class Creatable<T> where T : new()
\n{
\n public T CreateInstance()
\n {
\n return new T();
\n }
\n}<\/p>\n
\/\/ T \u5fc5\u987b\u7ee7\u627f\u81ea\u6307\u5b9a\u57fa\u7c7b\u6216\u5b9e\u73b0\u6307\u5b9a\u63a5\u53e3
\npublic class Processor<T> where T : IComparable, IFormattable
\n{
\n public int Compare(T a, T b)
\n {
\n return a.CompareTo(b);
\n }
\n}<\/p>\n
\/\/ \u591a\u91cd\u7ea6\u675f
\npublic class ComplexGeneric<T> where T : class, IComparable<T>, new()
\n{
\n \/\/ T \u5fc5\u987b\u662f\u5f15\u7528\u7c7b\u578b\u3001\u5b9e\u73b0 IComparable<T>\u3001\u4e14\u6709\u9ed8\u8ba4\u6784\u9020\u51fd\u6570
\n}<\/p>\n
4. \u6cdb\u578b\u96c6\u5408（System.Collections.Generic）<\/h3>\n
.NET Framework \u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5185\u7f6e\u6cdb\u578b\u96c6\u5408\u7c7b，\u8fd9\u662f\u6cdb\u578b\u6700\u5e38\u7528\u7684\u573a\u666f：<\/p>\n
using System.Collections.Generic;<\/p>\n
\/\/ List<T>：\u52a8\u6001\u6570\u7ec4
\nList<int> numbers = new List<int> { 1, 2, 3, 4, 5 };
\nnumbers.Add(6);<\/p>\n
\/\/ Dictionary<TKey, TValue>：\u952e\u503c\u5bf9\u96c6\u5408
\nDictionary<string, int> ages = new Dictionary<string, int>
\n{
\n ["Alice"] = 25,
\n ["Bob"] = 30
\n};
\nint bobAge = ages["Bob"];<\/p>\n
\/\/ Queue<T>：\u5148\u8fdb\u5148\u51fa\u961f\u5217
\nQueue<string> queue = new Queue<string>();
\nqueue.Enqueue("first");
\nqueue.Enqueue("second");
\nstring firstItem = queue.Dequeue();<\/p>\n
\/\/ Stack<T>：\u540e\u8fdb\u5148\u51fa\u6808
\nStack<double> stack = new Stack<double>();
\nstack.Push(3.14);
\nstack.Push(2.71);
\ndouble top = stack.Pop();<\/p>\n
\/\/ HashSet<T>：\u4e0d\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u96c6\u5408
\nHashSet<string> uniqueNames = new HashSet<string>
\n{
\n "John", "Jane", "John" \/\/ \u7b2c\u4e8c\u4e2a "John" \u4e0d\u4f1a\u88ab\u6dfb\u52a0
\n};<\/p>\n
5. \u534f\u53d8\u4e0e\u9006\u53d8（Covariance & Contravariance）<\/h3>\n
C# 4.0 \u5f15\u5165\u4e86\u6cdb\u578b\u63a5\u53e3\u548c\u59d4\u6258\u7684\u534f\u53d8\u4e0e\u9006\u53d8，\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u7684\u7c7b\u578b\u8f6c\u6362：<\/p>\n
5.1 \u534f\u53d8（out \u5173\u952e\u5b57）<\/h4>\n
\u5141\u8bb8\u4f7f\u7528\u6d3e\u751f\u7a0b\u5ea6\u66f4\u5927\u7684\u7c7b\u578b（\u66f4\u5177\u4f53\u7684\u7c7b\u578b）\u3002\u53ea\u80fd\u7528\u4e8e\u8f93\u51fa\u4f4d\u7f6e（\u8fd4\u56de\u503c）：<\/p>\n
\/\/ IEnumerable<T> \u662f\u534f\u53d8\u7684：IEnumerable<out T>
\nIEnumerable<string> strings = new List<string> { "a", "b", "c" };
\n\/\/ \u53ef\u4ee5\u5c06 IEnumerable<string> \u8d4b\u503c\u7ed9 IEnumerable<object>
\nIEnumerable<object> objects = strings; \/\/ \u534f\u53d8，\u56e0\u4e3a string \u6d3e\u751f\u81ea object<\/p>\n
\/\/ \u81ea\u5b9a\u4e49\u534f\u53d8\u63a5\u53e3
\npublic interface IProducer<out T>
\n{
\n T Produce();
\n}<\/p>\n
public class StringProducer : IProducer<string>
\n{
\n public string Produce() => "Hello";
\n}<\/p>\n
IProducer<string> stringProducer = new StringProducer();
\nIProducer<object> objectProducer = stringProducer; \/\/ \u534f\u53d8\u5141\u8bb8<\/p>\n
5.2 \u9006\u53d8（in \u5173\u952e\u5b57）<\/h4>\n
\u5141\u8bb8\u4f7f\u7528\u6d3e\u751f\u7a0b\u5ea6\u66f4\u5c0f\u7684\u7c7b\u578b（\u66f4\u901a\u7528\u7684\u7c7b\u578b）\u3002\u53ea\u80fd\u7528\u4e8e\u8f93\u5165\u4f4d\u7f6e（\u53c2\u6570）：<\/p>\n
\/\/ IComparer<T> \u662f\u9006\u53d8\u7684：IComparer<in T>
\nIComparer<object> objectComparer = Comparer<object>.Default;
\n\/\/ \u53ef\u4ee5\u5c06 IComparer<object> \u8d4b\u503c\u7ed9 IComparer<string>
\nIComparer<string> stringComparer = objectComparer; \/\/ \u9006\u53d8，\u56e0\u4e3a object \u662f string \u7684\u57fa\u7c7b<\/p>\n
\/\/ \u81ea\u5b9a\u4e49\u9006\u53d8\u63a5\u53e3
\npublic interface IConsumer<in T>
\n{
\n void Consume(T item);
\n}<\/p>\n
public class ObjectConsumer : IConsumer<object>
\n{
\n public void Consume(object item) { }
\n}<\/p>\n
IConsumer<object> objectConsumer = new ObjectConsumer();
\nIConsumer<string> stringConsumer = objectConsumer; \/\/ \u9006\u53d8\u5141\u8bb8<\/p>\n
6. \u6cdb\u578b\u59d4\u6258<\/h3>\n
\u59d4\u6258\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6cdb\u578b，.NET \u5185\u7f6e\u4e86\u5e38\u7528\u7684\u6cdb\u578b\u59d4\u6258：<\/p>\n
\/\/ Func<TResult>：\u65e0\u53c2\u6570，\u8fd4\u56de TResult
\nFunc<int> getRandom = () => new Random().Next(100);
\nint randomValue = getRandom();<\/p>\n
\/\/ Func<T, TResult>：\u4e00\u4e2a\u53c2\u6570，\u8fd4\u56de TResult
\nFunc<string, int> stringLength = s => s.Length;
\nint length = stringLength("Hello");<\/p>\n
\/\/ Action<T>：\u4e00\u4e2a\u53c2\u6570，\u65e0\u8fd4\u56de\u503c
\nAction<string> logger = message => Console.WriteLine(message);
\nlogger("Log message");<\/p>\n
\/\/ Predicate<T>：\u4e00\u4e2a\u53c2\u6570，\u8fd4\u56de bool
\nPredicate<int> isEven = n => n % 2 == 0;
\nbool result = isEven(4);<\/p>\n
\/\/ \u81ea\u5b9a\u4e49\u6cdb\u578b\u59d4\u6258
\npublic delegate T Transformer<T>(T input);
\npublic delegate TResult Converter<TInput, TResult>(TInput input);<\/p>\n
Transformer<int> square = x => x * x;
\nint squared = square(5); \/\/ 25<\/p>\n
7. \u6cdb\u578b\u7684\u6700\u4f73\u5b9e\u8df5<\/h3>\n\n- \u4f18\u5148\u4f7f\u7528\u6cdb\u578b\u96c6\u5408：\u603b\u662f\u4f7f\u7528 List<T>\u3001Dictionary<TKey, TValue> \u7b49\u6cdb\u578b\u96c6\u5408，\u907f\u514d\u4f7f\u7528 ArrayList\u3001Hashtable \u7b49\u975e\u6cdb\u578b\u96c6\u5408\u3002<\/li>\n
- \u5408\u7406\u4f7f\u7528\u7ea6\u675f：\u53ea\u5728\u5fc5\u8981\u65f6\u6dfb\u52a0\u7ea6\u675f，\u8fc7\u591a\u7684\u7ea6\u675f\u4f1a\u9650\u5236\u6cdb\u578b\u7684\u7075\u6d3b\u6027\u3002<\/li>\n
- \u8003\u8651\u53ef\u7a7a\u6027：C# 8.0 \u7684\u53ef\u7a7a\u5f15\u7528\u7c7b\u578b\u4e0e\u6cdb\u578b\u7ed3\u5408\u65f6，\u4f7f\u7528 T? \u8bed\u6cd5\u6216 default \u5173\u952e\u5b57\u5904\u7406\u53ef\u80fd\u4e3a null \u7684\u60c5\u51b5\u3002<\/li>\n
- \u907f\u514d\u8fc7\u5ea6\u6cdb\u5316：\u5982\u679c\u7c7b\u578b\u53c2\u6570\u53ea\u5728\u5c11\u6570\u5730\u65b9\u4f7f\u7528，\u8003\u8651\u4f7f\u7528\u91cd\u8f7d\u65b9\u6cd5\u800c\u975e\u6cdb\u578b\u3002<\/li>\n
- \u6027\u80fd\u8003\u91cf：\u6cdb\u578b\u5728\u7f16\u8bd1\u65f6\u751f\u6210\u7279\u5b9a\u7c7b\u578b\u7684\u4ee3\u7801，\u907f\u514d\u4e86\u88c5\u7bb1\u62c6\u7bb1，\u6027\u80fd\u63a5\u8fd1\u786c\u7f16\u7801\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
8. \u603b\u7ed3<\/h3>\n
C# \u6cdb\u578b\u662f\u73b0\u4ee3 .NET \u5f00\u53d1\u7684\u57fa\u77f3，\u5b83\u63d0\u4f9b\u4e86：<\/p>\n
- \u7c7b\u578b\u5b89\u5168：\u7f16\u8bd1\u65f6\u7c7b\u578b\u68c0\u67e5，\u51cf\u5c11\u8fd0\u884c\u65f6\u9519\u8bef\u3002<\/li>\n
- \u4ee3\u7801\u91cd\u7528：\u4e00\u5957\u4ee3\u7801\u5904\u7406\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/li>\n
- \u6027\u80fd\u4f18\u5316：\u907f\u514d\u88c5\u7bb1\u62c6\u7bb1，\u751f\u6210\u9ad8\u6548\u7684\u7279\u5316\u4ee3\u7801\u3002<\/li>\n
- \u4e30\u5bcc\u7684\u751f\u6001\u7cfb\u7edf：LINQ\u3001\u96c6\u5408\u7c7b\u3001\u5f02\u6b65\u7f16\u7a0b\u7b49\u90fd\u6df1\u5ea6\u4f9d\u8d56\u6cdb\u578b\u3002<\/li>\n
\u638c\u63e1\u6cdb\u578b\u4e0d\u4ec5\u80fd\u8ba9\u4f60\u7684\u4ee3\u7801\u66f4\u52a0\u5065\u58ee\u548c\u9ad8\u6548，\u4e5f\u662f\u7406\u89e3 .NET \u9ad8\u7ea7\u7279\u6027（\u5982 LINQ\u3001\u5f02\u6b65\u6d41\u3001\u4f9d\u8d56\u6ce8\u5165\u5bb9\u5668）\u7684\u5fc5\u8981\u524d\u63d0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
1. \u4ec0\u4e48\u662f\u6cdb\u578b？\u6cdb\u578b（Generics）\u662f C# 2.0 \u5f15\u5165\u7684\u6838\u5fc3\u7279\u6027，\u5b83\u5141\u8bb8\u5728\u5b9a\u4e49\u7c7b\u3001\u63a5\u53e3\u3001\u65b9\u6cd5\u65f6\u4f7f\u7528\u7c7b\u578b\u53c2\u6570，\u4ece\u800c\u521b\u5efa\u53ef\u91cd\u7528\u3001\u7c7b\u578b\u5b89\u5168\u4e14\u9ad8\u6027\u80fd\u7684\u4ee3\u7801\u7ec4\u4ef6\u3002\u7b80\u5355\u6765\u8bf4，\u6cdb\u578b\u8ba9\u4f60\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u80fd\u5904\u7406\u591a\u79cd\u6570\u636e\u7c7b\u578b\u7684\u4ee3\u7801\u6a21\u677f，\u800c\u65e0\u9700\u4e3a\u6bcf\u79cd\u7c7b\u578b\u91cd\u590d\u7f16\u5199\u76f8\u4f3c\u7684\u4ee3\u7801\u3002\u5728\u6ca1\u6709\u6cdb\u578b\u4e4b\u524d，\u6211\u4eec\u901a\u5e38\u4f7f\u7528 object \u7c7b\u578b\u6765\u5b9e\u73b0\u901a\u7528\u5bb9\u5668（\u5982 ArrayListÿ<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,190],"topic":[],"class_list":["post-94161","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-190"],"yoast_head":"\n
C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/94161.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"1. \u4ec0\u4e48\u662f\u6cdb\u578b？\u6cdb\u578b（Generics）\u662f C# 2.0 \u5f15\u5165\u7684\u6838\u5fc3\u7279\u6027，\u5b83\u5141\u8bb8\u5728\u5b9a\u4e49\u7c7b\u3001\u63a5\u53e3\u3001\u65b9\u6cd5\u65f6\u4f7f\u7528\u7c7b\u578b\u53c2\u6570，\u4ece\u800c\u521b\u5efa\u53ef\u91cd\u7528\u3001\u7c7b\u578b\u5b89\u5168\u4e14\u9ad8\u6027\u80fd\u7684\u4ee3\u7801\u7ec4\u4ef6\u3002\u7b80\u5355\u6765\u8bf4，\u6cdb\u578b\u8ba9\u4f60\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u80fd\u5904\u7406\u591a\u79cd\u6570\u636e\u7c7b\u578b\u7684\u4ee3\u7801\u6a21\u677f，\u800c\u65e0\u9700\u4e3a\u6bcf\u79cd\u7c7b\u578b\u91cd\u590d\u7f16\u5199\u76f8\u4f3c\u7684\u4ee3\u7801\u3002\u5728\u6ca1\u6709\u6cdb\u578b\u4e4b\u524d，\u6211\u4eec\u901a\u5e38\u4f7f\u7528 object \u7c7b\u578b\u6765\u5b9e\u73b0\u901a\u7528\u5bb9\u5668（\u5982 ArrayListÿ\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/94161.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-13T13:08:50+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/94161.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/94161.html\",\"name\":\"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-08-13T13:08:50+00:00\",\"dateModified\":\"2026-08-13T13:08:50+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/94161.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/94161.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/94161.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/94161.html","og_locale":"zh_CN","og_type":"article","og_title":"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"1. \u4ec0\u4e48\u662f\u6cdb\u578b？\u6cdb\u578b（Generics）\u662f C# 2.0 \u5f15\u5165\u7684\u6838\u5fc3\u7279\u6027，\u5b83\u5141\u8bb8\u5728\u5b9a\u4e49\u7c7b\u3001\u63a5\u53e3\u3001\u65b9\u6cd5\u65f6\u4f7f\u7528\u7c7b\u578b\u53c2\u6570，\u4ece\u800c\u521b\u5efa\u53ef\u91cd\u7528\u3001\u7c7b\u578b\u5b89\u5168\u4e14\u9ad8\u6027\u80fd\u7684\u4ee3\u7801\u7ec4\u4ef6\u3002\u7b80\u5355\u6765\u8bf4，\u6cdb\u578b\u8ba9\u4f60\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u80fd\u5904\u7406\u591a\u79cd\u6570\u636e\u7c7b\u578b\u7684\u4ee3\u7801\u6a21\u677f，\u800c\u65e0\u9700\u4e3a\u6bcf\u79cd\u7c7b\u578b\u91cd\u590d\u7f16\u5199\u76f8\u4f3c\u7684\u4ee3\u7801\u3002\u5728\u6ca1\u6709\u6cdb\u578b\u4e4b\u524d，\u6211\u4eec\u901a\u5e38\u4f7f\u7528 object \u7c7b\u578b\u6765\u5b9e\u73b0\u901a\u7528\u5bb9\u5668（\u5982 ArrayListÿ","og_url":"https:\/\/www.wsisp.com\/helps\/94161.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-08-13T13:08:50+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"4 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/94161.html","url":"https:\/\/www.wsisp.com\/helps\/94161.html","name":"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-08-13T13:08:50+00:00","dateModified":"2026-08-13T13:08:50+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/94161.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/94161.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/94161.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"C# \u6cdb\u578b\uff1a\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7\u5e94\u7528"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/94161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=94161"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/94161\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=94161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=94161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=94161"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=94161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}