C# Assignment Operator

In C#, the assignment operator = is used to assign a value to a variable. It has the following syntax:

variable = value;

Here, variable is the name of the variable that you want to assign a value to, and value is the value that you want to assign to the variable.

For example, the following code assigns the value 10 to the variable x:

int x;
x = 10;

The assignment operator can also be used with other operators to perform an operation and then assign the result to a variable. For example, the following code increments the value of the variable x by 1 and then assigns the result back to x:

x = x + 1;

This can be shortened using the += operator, like this:

x += 1;

Other similar operators include -= for subtraction, *= for multiplication, /= for division, and %= for modulus.

It's important to note that the assignment operator does not return a value, so you cannot use it as part of an expression. For example, the following code will not compile:

int x = 10;
int y = 5;
int z = x = y;    // This line will not compile

Instead, you must use the assignment operator separately, like this:

int x = 10;
int y = 5;
x = y;
int z = x;

It's also important to note that the assignment operator works differently for value types (such as int, double, and bool) and reference types (such as objects and arrays). For value types, the assignment operator copies the value of the right-hand side to the left-hand side. For reference types, the assignment operator copies the reference to the object, not the object itself. This can lead to unexpected behavior if you are not careful, especially when dealing with mutable reference types.