sql插入数据

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Data.SqlClient;

 namespace sql插入数据
 {
     class Program
     {
         static void Main(string[] args)
         {
             //数据库字符串
             string str = "Data Source=.;Initial Catalog=mysql;Integrated Security=True";
            //sql语句
             string sql = "insert into student values(5,'aaa','sss','ddd')";
             //连接数据库
             SqlConnection con = new SqlConnection(str);
             con.Open();
             //执行sql命令
             SqlCommand cmd = new SqlCommand(sql,con);
            //判断是否执行了sql
             int n = -;
             n = cmd.ExecuteNonQuery();
             if (n>)
             {
                 Console.WriteLine("执行完毕！受影响行数为："+n);
             }
             else
             {
                 Console.WriteLine("执行失败！");
             }
             Console.ReadKey();
             //关闭数据库
             con.Dispose();
             cmd.Dispose();
         }
     }
 }