2016年英文版的，应该是兼容VS2017， C#(pronounced"SeeSharp")isasimple,modern,object-oriented,andtype-safeprogramminglanguage.C#hasitsrootsintheCfamilyoflanguagesandwillbeimmediatelyfamiliartoC,C++,andJavaprogrammers.C#isstandardizedbyECMAInternationalastheECMA-334standa