C how to print out the original array

Preface ：

Array is a very important data structure , We often use it , Probably the longest used is to traverse and print them , But there is a small problem. We print while traversing , Often the shape will not be like the original structure ！

• Take an array as an example , The array structure is for example ：

int [] b= new int []{
    1,2,3}

• Take calling the newline print function as an example （ The same goes for single line printing , Just to illustrate the situation ）, Print the input as follows ：

1
2
3

So if we use other array structures at the same time and print to CLI It will affect judgment and reading , In this way, we need to restore the array to its appearance at the time of code definition when printing ！

resolvent

We need to write a print function that outputs a specific array type ！Easy! Go straight to the code ！

（1） Function method

static void PrintArray(int[] a)// The specific array type can be changed according to the actual situation 
        {
    
            // You need to judge whether the input array is empty 
            if (a.Length != 0)
            {
    
                string str = "";
                foreach (var i in a)
                {
    
                    str = str + i + ",";
                }

                WriteLine("[" + str.Substring(0, str.Length - 1) + "]");// adopt Substring() Remove the corresponding characters 
            }
            if (a.Length == 0) WriteLine("[]");// If the array is empty , Print the empty array format 
        }

If you use , In a class library project , Encapsulate functions into class methods , That will optimize your efficiency ！

（2） Complete code （ Attached test code ）：

using static System.Console;

namespace ConsoleApp1
{
    
    class Program
    {
    
        static void PrintArray(int[] a)// The specific array type can be changed according to the actual situation 
        {
    
            // You need to judge whether the input array is empty 
            if (a.Length != 0)
            {
    
                string str = "";
                foreach (var i in a)
                {
    
                    str = str + i + ",";
                }

                WriteLine("[" + str.Substring(0, str.Length - 1) + "]");// adopt Substring() Remove the corresponding characters 
            }
            if (a.Length == 0) WriteLine("[]");// If the array is empty , Print the empty array format 
        }
        static void Main(string[] args)
        {
    
            int[] a=new int[] {
    1,2,3};
            PrintArray(a);
            ReadKey();
        }
    }
}

• Output is as follows ：

[1,2,3]

Finally, if there are deficiencies in the text , Please also make many corrections ！