在F#中,构造函数与其他.Net语言略有不同。总有一个主构造函数可能有参数,也可能没有参数。这些参数的范围遍及整个类。
您可以使用new关键字创建新的附加构造函数。构造函数的主体必须调用类声明顶部指定的主构造函数。
type Employee(name) = class do printf "%s" name end let e = new Employee("FSharp")
输出:
链接:https://www.learnfk.comhttps://www.learnfk.com/fsharp/f-sharp-constructor.html
来源:LearnFk无涯教程网
FSharp
type Employee(id) = class new () = // This is non parameterized constructor printf "This is non parametrized constructor" Employee(12) end let e = new Employee()
输出:
链接:https://www.learnfk.comhttps://www.learnfk.com/fsharp/f-sharp-constructor.html
来源:LearnFk无涯教程网
This is non parametrized constructor
type Employee (id,name,salary)= class let mutable Id= id let mutable Name = name let mutable Salary = salary member x.Display() = printfn "%d %s %0.2f" Id Name Salary end let a = new Employee(100,"Rajkumar",25000.00) a.Display() let a1 = new Employee(101, "john",26000.00) a1.Display()
输出:
链接:https://www.learnfk.comhttps://www.learnfk.com/fsharp/f-sharp-constructor.html
来源:LearnFk无涯教程网
100 Rajkumar 25000.00 101 john 26000.00
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