What are the Different C# Array Initialization Syntaxes?

C# When the array in C#is created, it can initialize its elements through a variety of grammar, which provides flexibility and convenience in various programming scenarios. The following is possible grammar:

This syntax creates a specified array with a default element, which is suitable for the situation that needs to initialize each element later.

string[] array = new string[2]; // 创建一个长度为2，元素为默认值的数组

Elements are provided directly in the array initialization, and this syntax uses the specified value to fill the array.

string[] array = new string[] { "A", "B" }; // 创建一个长度为2，并已填充元素的数组

This syntax is similar to the previous grammar, but does not explicitly specify the new string array. The compiler infer the type based on the value provided.

string[] array = { "A" , "B" }; // 创建一个长度为2，并已填充元素的数组

This syntax combines the statement and initialization into a line, simplifying the code.

string[] array = new[] { "A", "B" }; // 创建一个长度为2，并已填充元素的数组

The collection expression introduced in

C# 12 allows simple array initialization when the target type cannot be inferred from the right.

string[] array = ["A", "B"]; // 创建一个长度为2，并已填充元素的数组 (C# 12及更高版本)

By using these different array initialization syntax, you can enhance your C#programming experience according to specific needs and preferences.

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