What is the basic syntax of c# variable declaration?

C# Basic syntax for variable declaration

In C#, the basic syntax for declaring variables is as follows:

<code>数据类型 变量名;</code>

Among them:

• Data type: The type of data stored in the variable, such as int, string, double, etc.
• Variable name: The name of the variable consists of letters, numbers, and underscores, and must start with a letter.

Example:

<code>int age;
string name;
double salary;</code>

This code declares three variables:

• age:one Variable to store integers.
• name: A variable that stores a string.
• salary: A variable that stores a double-precision floating point number.

Note:

• The variable name cannot be the same as the C# keyword.
• Variable names cannot contain spaces.
• Variables must be declared before use.
• The type of a variable cannot be changed after declaration.

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