如何与Linq分开？

Question

我在包含状态数据的数据库表中有一列33:Rio de Janeiro.我想33使用LINQ表达式提取代码.这是我的代码.

public string command(string query)
{
    string res = string.Empty;
    MySqlConnection conn = new MySqlConnection(MysqlConnect());
    MySqlCommand cmd = new MySqlCommand(query,conn);
    res = cmd.ExecuteScalar().ToString();
    conn.Close();
    return res;
}

在这里,我想得到州的代码.

string code = db.command("select cidade from logos ")
                .Split(':')
                .Where(<Expression to get the first part>);

请帮我.

Answer 1

string code=db.command("select cidade from logos ").Split(':').First()