android1

yyl

2026-05-08 ea4e25ceca21484cbb422b4ce49ec6bc1220441f

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using System;
using System.Collections.Generic;
 
public static class CollectionExtensions
{
    public static bool Contains<T>(this T[] source, T value)
    {
        return Array.IndexOf(source, value) != -1;
    }
 
}