*= Operator (C# Reference)
The binary multiplication assignment operator.
Remarks
An expression using the *= assignment operator, such as
x *= y
is equivalent to
x = x * y
except that x is only evaluated once. The * operator is predefined for numeric types to perform multiplication.
The *= operator cannot be overloaded directly, but user-defined types can overload the * operator (see operator).
Example
class MainClass10
{
static void Main()
{
int a = 5;
a *= 6;
Console.WriteLine(a);
}
}
/*
Output:
30
*/