网上演练贵港万达广场(人员密集)
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#if NET20 || NET30
namespace System
{
/// <summary>Encapsulates a method that has three parameters and returns a value of the type specified by the <typeparam name="TResult" /> parameter.</summary>
/// <typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
/// <typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
/// <typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
/// <typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
/// <param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
/// <param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
/// <param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
/// <returns>The return value of the method that this delegate encapsulates.</returns>
#if NETCF
public delegate TResult Func<T1, T2, T3, TResult>(T1 arg1, T2 arg2, T3 arg3);
#else
public delegate TResult Func<in T1, in T2, in T3, out TResult>(T1 arg1, T2 arg2, T3 arg3);
#endif
}
#endif