C# 中switch和case如何使用
今天就跟大家聊聊有关C# 中switch和case如何使用,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。
public static class SwithCaseExtension
{
SwithCase#region SwithCase
public class SwithCase<TCase, TOther>
{
public SwithCase(TCase value, Action<TOther> action)
{
Value = value;
Action = action;
}
public TCase Value { get; private set; }
public Action<TOther> Action { get; private set; }
}
#endregion
Swith#region Swith
public static SwithCase<TCase, TOther> Switch<TCase, TOther>
(this TCase t, Action<TOther> action) where TCase : IEquatable<TCase>
{
return new SwithCase<TCase, TOther>(t, action);
}
public static SwithCase<TCase, TOther> Switch<TInput, TCase, TOther>
(this TInput t, Func<TInput, TCase> selector, Action<TOther> action)
where TCase : IEquatable<TCase>
{
return new SwithCase<TCase, TOther>(selector(t), action);
}
#endregion
Case#region Case
public static SwithCase<TCase, TOther> Case<TCase, TOther>
(this SwithCase<TCase, TOther> sc, TCase option, TOther other)
where TCase : IEquatable<TCase>
{
return Case(sc, option, other, true);
}
public static SwithCase<TCase, TOther> Case<TCase, TOther>
(this SwithCase<TCase, TOther> sc, TCase option, TOther other, bool bBreak)
where TCase : IEquatable<TCase>
{
return Case(sc, c=>c.Equals(option), other, bBreak);
}
public static SwithCase<TCase, TOther> Case<TCase, TOther>
(this SwithCase<TCase, TOther> sc, Predicate<TCase> predict, TOther other)
where TCase : IEquatable<TCase>
{
return Case(sc, predict, other, true);
}
public static SwithCase<TCase, TOther> Case<TCase, TOther>
(this SwithCase<TCase, TOther> sc, Predicate<TCase> predict,
TOther other, bool bBreak) where TCase : IEquatable<TCase>
{
if (sc == null) return null;
if (predict(sc.Value))
{
sc.Action(other);
return bBreak ? null : sc;
}
else return sc;
}
#endregion
Default#region Default
public static void Default<TCase, TOther>
(this SwithCase<TCase, TOther> sc, TOther other)
{
if (sc == null) return;
sc.Action(other);
}
#endregion
}
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