将文字赋给oracle块中的绑定变量(C#输出参数)

using Oracle.DataAccess.Client;

// 创建Oracle连接字符串
string connectionString = "Data Source=your_data_source;User Id=your_username;Password=your_password;";

// 创建Oracle连接对象
using (OracleConnection connection = new OracleConnection(connectionString))
{
    // 打开连接
    connection.Open();

    // 创建Oracle命令对象
    using (OracleCommand command = connection.CreateCommand())
    {
        // 设置Oracle块的内容
        command.CommandText = "BEGIN :outputParam := :inputParam; END;";

        // 创建输入参数
        OracleParameter inputParam = new OracleParameter("inputParam", OracleDbType.Varchar2);
        inputParam.Value = "Hello World";
        command.Parameters.Add(inputParam);

        // 创建输出参数
        OracleParameter outputParam = new OracleParameter("outputParam", OracleDbType.Varchar2);
        outputParam.Direction = System.Data.ParameterDirection.Output;
        command.Parameters.Add(outputParam);

        // 执行Oracle块
        command.ExecuteNonQuery();

        // 获取输出参数的值
        string outputValue = outputParam.Value.ToString();

        // 输出结果
        Console.WriteLine("输出参数的值为：" + outputValue);
    }
}