Public static T Max<T>(T left, T right) { return Comparer<T>.Default.Compare(left, right) < 0 ? right : left } 推荐使用泛型的Tuple作为输出和引用参数 当设置方法的返回值,或者在需要使用ref参数的情形时,使用Tuple<>元组可以使代码更清晰,当然如果参数比较复杂,
Tuple with elements 1.2 and 5 System.ValueTuple类型支持的C#元组不同于System.Tuple类型表示的元组。主要区别如下: System.ValueTuple类型是值类型。System.Tuple类型是引用类型。 System.ValueTuple类型是可变的。System.Tuple类型是不可变的。 System.ValueTuple类型的数据成员是字段。System.Tuple类型的数据成员是属性。
classProgram {staticvoidMain(string[] args) {varminmax = Minmax(6,2); Console.WriteLine("Mix = {0}, Max = {1}", minmax.Item1, minmax.Item2); }privatestaticTuple<Int32, Int32>Minmax(Int32 a, Int32 b) {returnnewTuple<Int32, Int32>(Math.Min(a, b), Math.Max(a, b)); } }...
在访问者访问 TupleTypeSyntax 节点时调用。 VisitTypeArgumentList(TypeArgumentListSyntax) 在访问者访问 TypeArgumentListSyntax 节点时调用。 VisitTypeConstraint(TypeConstraintSyntax) 在访问者访问 TypeConstraintSyntax 节点时调用。 VisitTypeCref(TypeCrefSyntax) 在访问者访问 TypeCrefSyntax 节点时...
PyObject *ArgArray = PyTuple_New(1); PyTuple_SetItem(ArgArray, 0, PyArray); PyObject *pFunc = PyDict_GetItemString(pDict, "Show");//获取函数对象 PyObject_CallObject(pFunc, ArgArray); PyErr_Print(); //Py_DECREF(PyArray);//注意!
TupleType 8924 TypeArgumentList 8619 TypeConstraint 8870 TypeCref 8597 TypeKeyword 8411 Represents type.TypeOfExpression 8760 TypeOfKeyword 8320 Represents typeof.TypeParameter 8910 TypeParameterConstraintClause 8866 TypeParameterList 8909 ...
Given a syntax node of a tuple argument, get the tuple element symbol. GetDeclaredSymbol(SemanticModel, BaseMethodDeclarationSyntax, CancellationToken) Given a base method declaration syntax, get the corresponding method symbol. GetDeclaredSymbol(SemanticModel, BasePropertyDeclarationSyntax, CancellationToken)...
Tuples would break poorly in some cases // 0.19.2 public async Task<(ILookup<string, int> someLookup, ILookup<int, string> reverseLookup, ILookup< string, ClassName > thirdLookup)> CreateLookups() { return (null, null); } public void TuplesAsInput( (int myInt, string myString, ClassN...
This could be an options input parameter or bundled return values for an async method to avoid unnamed tuples.ℹ️ Even in these cases, consider whether exposing the type outside the main type is required. If not, make it a nested type....
}; internal static object GetFormatter(Type t) { object formatter; if (formatterMap.TryGetValue(t, out formatter)) { return formatter; } // If target type is generics, use MakeGenericType. if (t.IsGenericParameter && t.GetGenericTypeDefinition() == typeof(ValueTuple<,>)) { return ...