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public static T[] ToArray<T>(IEnumerable<T> e) {
return e.ToArray();
}
我收到以下编译器错误:
Error 1
System.Collections.Generic.IEnumerable<T>
does not contain a definition forToArray
and no extension methodToArray
accepting a first argument of typeSystem.Collections.Generic.IEnumerable<T>
could be found (are you missing a using directive or an assembly reference?
但是MSDN reference列出此方法。这里有什么问题?