https://www.cnblogs.com/huangxincheng/p/5828470.html
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Data; using System.Data.SqlClient; using Dapper; namespace TestDapper { class Program { static void Main(string[] args) { string connectionStr = "Data Source=LJJ-FF\\LJJ;Initial Catalog=TestDapper;User ID=sa;Password=111111;Max Pool Size=500;Min Pool Size=1"; IDbConnection connection = new SqlConnection(connectionStr); //var result1 = connection.Execute("Insert into Users values (@UserName, @Email, @Address)", // new { UserName = "jack", Email = "380234234@qq.com", Address = "上海" }); //var usersList = Enumerable.Range(0, 10).Select(i => new Users() //{ // Email = i + "qq.com", // Address = "安徽", // UserName = i + "jack" //}); //var result2 = connection.Execute("Insert into Users values (@UserName, @Email, @Address)", usersList); //var query = connection.Query<Users>("select * from Users where UserName=@UserName", new { UserName = "jack" }); //if (query != null) //{ // Console.WriteLine(((Users)query.FirstOrDefault()).UserName); //} //var result3 = connection.Execute("update Users set UserName=‘nancy‘ where UserID=@UserID", new { UserID=11 }); var result4 = connection.Execute("delete from Users where UserID=@UserID", new { UserID = 10}); Console.ReadKey(); } } class Users { public string UserID { get; set; } public string UserName { get; set; } public string Email { get; set; } public string Address { get; set; } } }