數學的三元運算子是輸入為3個自變量的運算。電腦科學中的三元運算子是有3個運算元的運算子。[1]
電腦科學
C語言為代表的一些程式語言定義的條件表達式?:即為三元運算子表達式。[2]
Python語言中三元條件運算子表達式x if C else y。Python還支援列表的切片操作也是三元運算子，如a[b:c]。[3] OCaml的三元運算子表達式a.[b]<-c表示字串a的索引b有值c。[4]
SQL的between也是三元運算子。
參考文獻
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