Csharp 相对于整数数组对字符串数组进行排序

发布于07月21日

我是一个编程的初学者，还在学习，我有两个数组，一个用于汽车，第二个用于汽车速度

string[] cars = {"Volvo", "BMW","Ford", "Mazda"};

Int[] speeds = {150,130,200,110}

所以沃尔沃的速度是150，宝马的速度是130，福特的速度是300，等等

在C#中有没有一种方法可以按照速度从最高到最低重新排列数组，从而使数组如下所示

String[] cars = {"ford","volvo","bmw","mazda"};

Int[] speeds = {300,150,130,110};

推荐答案

一种简洁的方法是将两个数组"压缩"到一个元组数组中，按速度对元组进行排序，然后将元组拆分为两个数组:

var tuples = cars.Zip(speeds, (car, speed) => (car, speed))
    .OrderByDescending(tuple => tuple.speed)
    .ToList();
string[] sortedCars = tuples.Select(tuple => tuple.car).ToArray();
int[] sortedSpeeds = tuples.Select(tuple => tuple.speed).ToArray();

通过向Zip添加更多调用，您可以对三个或更多数组进行排序:

var tuples = cars.Zip(speeds, (car, speed) => (car, speed))
    .Zip(colors, (tuple, color) => (tuple.car, tuple.speed, color))
    // .Zip(weights, (tuple, weight) => (tuple.car, tuple.speed, tuple.color, weight))
    .OrderByDescending(tuple => tuple.speed)
    .ToList();
string[] sortedCars = tuples.Select(tuple => tuple.car).ToArray();
int[] sortedSpeeds = tuples.Select(tuple => tuple.speed).ToArray();
string[] sortedColors = tuples.Select(tuple => tuple.color).ToArray();
// int[] sortedWeights = tuples.Select(tuple => tuple.weight).ToArray();

但在这一点上，正如Guru Stron所指出的，您真的应该考虑引入一个Car类，而不是使用单独的array.