C#ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«ã¤ã„ã¦ä¸‹è¨˜ã‚³ãƒ¼ãƒ‰ã®ãƒ“ルドãŒé€šã‚‰ãšå›°ã£ã¦ã„ã¾ã™ã€‚ public class TestClass : IBase, IExpansion1, IExpantion2 { public T Get<T>() where T : IBase { return this; } } public interface IBase {} public interface IExpansion1 : IBase {} public interface IExpantion2 : IBase {} 具体的ã«ã¯ return this; ã®ã¨ã“ã‚ã§åž‹å¤‰æ›ãŒã§ããªã„ã¨æ€’られã¾ã™ã€‚ æ€æƒ‘ã¨ã—ã¦ã¯ã€ ä»–ã®ã‚¯ãƒ©ã‚¹ãŒTestClassã®æ©Ÿèƒ½ã‚’使ã†ã®ã«å®Ÿä½“ãã®ã¾ã¾ä½¿ã†ã®ã§ã¯ãªã〠利用クラスã”ã¨ã«é©åˆ‡ãªinterface（IExpansion1, IExpantion2）をå–å¾—ã—〠ãれを通ã—ã¦ä½¿ã£ã¦æ¬²ã—ã„ã¨è€ƒãˆã¦ã„ã¾ã™ã€‚ ãã®
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