c# insert unicode character to string

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string text = "π or \u03c0";

Console.WriteLine(text); // Output: "π or π"

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using System;

public class Program
{
    public static void Main()
    {
        string text = "π and \u03c0 are\u0020equal"; // U+03C0 U+0020

        Console.WriteLine(text); // Output: "π and π are equal"
    }
}

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using System;

public class Program
{
    public static void Main()
    {
        string apple = "\uD83C\uDF4F";
        string banana = "\uD83C\uDF4C";
        string cherry = "\uD83C\uDF52";

        Console.WriteLine(apple);  // 🍏
        Console.WriteLine(banana); // 🍌
        Console.WriteLine(cherry); // 🍒
    }
}