C# 用带值的元组实例化字典

Question

我有一个包含一个整数和一个元组的字典。

我想在实例化时插入一些值，但出现错误:

Cannot convert from 'System.Tuple' to 'System.Collections.Generic.IEqualtyComparer

这就是我想要做的:

public static readonly Dictionary<int, Tuple<int, double>> DIAMETER_METRIC_CHAMFER 
        = new Dictionary<int, Tuple<int, double>>({80, new Tuple<int, double>(16, 37.0)}
);

Answer 1

您已通过元素 {80, new Tuple<int, double>(16, 37.0)}到字典的构造函数中，你应该改用初始化器:

public static readonly Dictionary<int, Tuple<int, double>> DIAMETER_METRIC_CHAMFER
        = new Dictionary<int, Tuple<int, double>>() 
            { 
                { 80, new Tuple<int, double>(16, 37.0) } 
            };