使用 Image 属性打印出 float

Version = 有 2012 年(TC-1)

with Ada.Text_IO;

procedure Main is
   type Some_Float digits 8 range 0.0 .. 10.0;
   X : Some_Float := 2.71;
begin
   Ada.Text_IO.Put_Line (X'Image);
end Main;

结果

2.71000E+00