摘要：using System; using System.Data; using System.Windows.Forms; using DotNet.Utilities; namespace WindowsFormsApp1 { public partial class Form1 : Form { 阅读全文

摘要：拼接sql语句会造成sql注入,注入演示 namespace WindowsFormsApp1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_C 阅读全文

摘要：添加Json解析引用 实现方式一：普通转换 实现方式二：Task任务 效果 阅读全文

摘要：using System; using System.Windows.Forms; using System.Data.SqlClient; namespace WindowsFormsApp3 { public partial class FrmMain : Form { public FrmMain() { Initi... 阅读全文

摘要：using System.Data; using System.Data.SqlClient; using System.Configuration; namespace WindowsFormsApp3 { public class DbHelper { private static string connStr = ConfigurationManager.ConnectionStrings[ 阅读全文