打印任何类型的数组和列表的常用方法 [英] Common method for printing arrays and lists of any types

问题描述

每当我调试一段涉及整数或整数，双精度，字符串等的数组或列表的代码时，我有时宁愿打印它们。我要做的是为不同类型编写重载的printArray / printList方法。

Whenever I am debugging a piece of code which involves arrays or lists of ints, doubles, strings, etc/, I prefer printing them over sometimes. What I do for this is write overloaded printArray / printList methods for different types.

例如

我可能有这三种方法可以打印各种类型的数组

I may have these 3 methods for printing arrays of various types

public void printArray(int[] a);

public void printArray(float[] b);

public void printArray(String[] s);

尽管这对我有用，但我仍然想知道是否可以使用通用方法打印任何类型的数组/列表。

Though this works for me, I still want to know whether it is possible to have a generic method which prints arrays/lists of any types. Can this also be extended to array/list of objects.

推荐答案

有用的 String.Join< T>（字符串分隔符，IEnumerable< T>值） 方法。您可以传递任何对象的数组或列表或任何可枚举的集合，因为对象将通过调用 .ToString（）转换为字符串。

There is useful String.Join<T>(string separator, IEnumerable<T> values) method. You can pass array or list or any enumerable collection of any objects since objects will be converted to string by calling .ToString().

int[] iarr = new int[] {1, 2, 3};
Console.WriteLine(String.Join("; ", iarr));  // "1; 2; 3"
string[] sarr = new string[] {"first", "second", "third"};
Console.WriteLine(String.Join("\n", sarr));  // "first\nsecond\nthird"

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