DRDS 支持如下算术运算符：
| 操作符 | 描述 |
| DIV | Integer division |
| / | Division operator |
| - | Minus operator |
| %, MOD | Modulo operator |
| + | Addition operator |
| * | Multiplication operator |
| - | Change the sign of the argument |
DRDS 支持如下算术运算符：
| 操作符 | 描述 |
| DIV | Integer division |
| / | Division operator |
| - | Minus operator |
| %, MOD | Modulo operator |
| + | Addition operator |
| * | Multiplication operator |
| - | Change the sign of the argument |
