Question

c#中怎样查找读取数据库中一个单元格的内容

在数据库中，我想用sql = "select 密码 from Checker where 管理员账号=" + userid;
SqlCommand cmd = new SqlCommand(sql, conn);然后我执行了语句conn.Open();
string str = "";
SqlDataReader read = cmd.ExecuteReader();
while (read.Read())
{
str = read.ToString();
}
这个密码str就是读不出来，请问该怎么写啊

Answer 1

conn.Open();
string str = "";
SqlDataReader read = cmd.ExecuteReader();
while (read.Read())
{
str = read[0].ToString();//读出对应的密码
}可以这样，你试试