EF codefirst

 <connectionStrings>
    
    <add name="constr" connectionString="server=*;Initial Catalog=W10;Persist Security Info=True;User ID=sa;Password=***" providerName="System.Data.SqlClient" />

  </connectionStrings>

//   web  config  

public class dbcr:DbContext
    {
        public dbcr()
            : base("name=constr")
        {
        }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
        }

        public virtual DbSet<Class1> Class1 { get; set; }

    }


  



-------****---
 public   class Class1
    {

        [Key]
        public int id { get; set; }

        public String names { get; set; }

    }

需要导入  EntityFramework ，System.Data.Entity