adj.一元的;
例句:
The unary + ( plus ) operator yields its numeric argument unchanged.
一元运算符+ ( 加 ) 不改变其数值型操作数.
All constraints for a unary fact are implied.
一元事实的所有约束都被表达出来.
For example, ++ is unary operator.
例如, ++是一元运算符.