C#连接数据库
SqlConnection conn=new SqlConnection ("server=.;database=LibraryManagement;integrated security=true");
conn.Open();
string sql = "select * from 表名";
SqlCommand comm = new SqlCommand(sql,conn);
SqlDataReader sdr = comm.ExecuteReader();
sdr.Read();
conn.Open();
string sql = "select * from 表名";SqlCommand comm = new SqlCommand(sql,conn);
SqlDataReader sdr = comm.ExecuteReader();
sdr.Read();
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