C # mathematical operators

Operators are roughly divided into the following three types:

• Unary operator, processing an operator
• Binary operator, processing two operands
• Three-element operator, processing three operands

Most operators are binary operators. There are only a few unary operators and a ternary operator, that is, a conditional operator (a conditional operator is a logical operator ). The following describes mathematical operators, including unary and binary operators.

 

I. mathematical operators

There are five simple mathematical operators, two of which have two forms: two yuan and one yuan. The following table lists these operators and uses a short example to describe their usage and their results when using a simple numeric type.

Operator	Class	Example expression	Result
+	Binary	Var1 = var2 + var3;	The value of var1 is the sum of var2 and var3.
-	Binary	Var1 = var2-var3;	The value of var1 is the difference between var2 and var3.
*	Binary	Var1 = var2 * var3;	The value of var1 is the product of var2 and var3.
/	Binary	Var1 = var2/var3;	Var1 is the value obtained by dividing var2 by var3.
%	Binary	Var1 = var2 % var3;	Var1 is the remainder of var2 divided by var3.
+	RMB 1	Var1 = + var2;	The value of var1 is equal to the value of var2.
-	RMB 1	Var1 =-var2;	The value of var1 is equal to the value of var2 multiplied by-1.

The PS: + (mona1) operator is a bit odd because it has no effect on the result. It does not convert the value to positive: If var2 is-1, + var2 is still-1. However, this is a universally recognized operator, so it is also included.