[笔记系列]C# Entity Framework Fluent API 写法(code first)

protected override void OnModelCreating(DbModelBuilder modelBuilder){    modelBuilder.Entity<Student>()                .HasMany(x => x.Professors)                .WithMany(y => y.Students)                .Map(x =>                {                    x.ToTable("ProfessorsStudentsRelation");                    x.MapLeftKey("SerialId_P");                    x.MapRightKey("SerialId_S");                });}