C# (CSharp) P03._Database_Before Courses.PrintById示例

示例#1

        static void Main(string[] args)
        {
            Courses courses = new Courses(new TextCourseData("../../../coursedata.txt"));

            courses.PrintAll();
            courses.PrintById(5);
            courses.PrintIds();
        }

示例#2

文件： Program.cs 项目： patonov/CSharp_OPP

        static void Main(string[] args)
        {
            Courses courses = new Courses(new MemoryCourseData());

            courses.PrintAll();
            courses.PrintIds();
            courses.PrintById(2);
        }