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                # Compiler Error CS0552 “conversion routine”:與接口之間的用戶定義轉換 不能創建用戶定義的接口轉換。如果需要轉換例程,則使接口成為類來解決該錯誤,或者從接口派生類。 下面的示例生成 CS0552: ``` // CS0552.cs public interface ii { } public class a { // delete the routine to resolve CS0552 public static implicit operator ii(a aa) // CS0552 { return new ii(); } public static void Main() { } } ```
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