代码：

// 定义一个类
type Person = // 属性定义{ Name: string; Age: int }// 静态属性static member Tom = { Name = "Tom"; Age = 20 }// 静态方法static member GetPerson(name, age) = { Name = name; Age = age }// 成员方法member s.SayHi() = printfn "Hi there, I'm %s and I'm %d years old." s.Name s.Age// 实例化
let jack = { Name = "Jack"; Age = 30 }let tom = Person.Tom// 调用成员方法
jack.SayHi()
tom.SayHi()// 访问属性
printfn "%s" jack.Name
printfn "%d" tom.Age

输出：

Hi there, I'm Jack and I'm 30 years old.
Hi there, I'm Tom and I'm 20 years old.
Jack
20

type Person =
  {Name: string;
   Age: int;}
  with
    member SayHi : unit -> unit
    static member GetPerson : name:string * age:int -> Person
    static member Tom : Person
  end
val jack : Person = {Name = "Jack";
                     Age = 30;}
val tom : Person = {Name = "Tom";
                    Age = 20;}

用 Reflector 反编译生成的 dll, 代码如下：

[Serializable, CompilationMapping(SourceConstructFlags.RecordType)]
public sealed class Person : IEquatable<Program.Person>, IStructuralEquatable, IComparable<Program.Person>, IComparable, IStructuralComparable
{// Fields[DebuggerBrowsable(DebuggerBrowsableState.Never)]internal int Age@;[DebuggerBrowsable(DebuggerBrowsableState.Never)]internal string Name@;// Methodspublic Person(string name, int age);[CompilerGenerated]public sealed override int CompareTo(Program.Person obj);[CompilerGenerated]public sealed override int CompareTo(object obj);[CompilerGenerated]public sealed override int CompareTo(object obj, IComparer comp);[CompilerGenerated]public sealed override bool Equals(Program.Person obj);[CompilerGenerated]public sealed override bool Equals(object obj);[CompilerGenerated]public sealed override bool Equals(object obj, IEqualityComparer comp);[CompilerGenerated]public sealed override int GetHashCode();[CompilerGenerated]public sealed override int GetHashCode(IEqualityComparer comp);public static Program.Person GetPerson(string name, int age);public void SayHi();// Properties[CompilationMapping(SourceConstructFlags.Field, 1)]public int Age { get; }[CompilationMapping(SourceConstructFlags.Field, 0)]public string Name { get; }public static Program.Person Tom { get; }
}