ExecuteNonQuery: CommandText 属性尚未初始化
问题遇到的现象和发生背景
问题相关代码，请勿粘贴截图
public int ExecuteUpdate(string sqlStr) //用于增删改;
{
SqlConnection con = new SqlConnection(@MySqlCon);
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandType = CommandType.Text;
cmd.CommandText = sqlStr;
int iud = 0;
iud = cmd.ExecuteNonQuery();
con.Close();
return iud;
运行结果及报错内容
