猿创征文|C#基础——DBHelper
猿创征文|C#基础——DBHelper
前言
DBHelper源码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Data.SqlClient;namespace CShapDBHelper
{
public class DBHelper
{
private static string url = "server=.;database=girl1804;uid=sa;pwd=root";
////// 获取查询信息
//////
///
public static DataTable Query(string sql) {
SqlConnection conn = new SqlConnection(url);
SqlDataAdapter sdap = new SqlDataAdapter(sql, conn);
DataSet ds = new DataSet();
sdap.Fill(ds);
return ds.Tables[0];
}
////// 增删改
//////
///
public static int ExecuteNonQuery(string sql) {
SqlConnection conn = new SqlConnection(url);
conn.Open();
SqlCommand cmd = new SqlCommand(sql,conn);
int rows = cmd.ExecuteNonQuery();
conn.Close();
return rows;
}
}
}