操作符只是用于执行操作的符号。可以有多种类型的运算，例如算术运算，逻辑运算，按位运算等。
C++中运算符的优先级
将首先评估哪个运算符的运算符种类的优先级。关联性指定要评估的操作员方向，可以从左到右或从右到左。
让我们通过以下示例了解优先级:
int data=5+10*10;
"data"变量将包含105，因为*(乘法运算符)在+(加法运算符)之前求值。
C++运算符的优先级和关联性如下所示:
| Category | Operator | Associativity |
|---|---|---|
| Postfix | () [] -> . ++ - - | Left to right |
| Unary | + - ! ~ ++ - - (type)* & sizeof | Right to left |
| Multiplicative | */% | Left to right |
| Additive | + - | Right to left |
| Shift | << >> | Left to right |
| Relational | < <= > >= | Left to right |
| Equality | == !=/td> | Right to left |
| Bitwise AND | & | Left to right |
| Bitwise XOR | ^ | Left to right |
| Bitwise OR | | | Right to left |
| Logical AND | && | Left to right |
| Logical OR | || | Left to right |
| Conditional | ?: | Right to left |
| Assignment | = += -= *= /= %=>>= | Right to left |
| Comma | , | Left to right |
