asp.netµÚ 1 ÐÐ: '=' ¸½½üÓÐÓï·¨´íÎó

public DataRow dr;
    public static string newsid;
    protected void Page_Load(object sender, EventArgs e)
    {
        newsid = Request.Params["nid"];
        SqlConnection con = DB.con();
        SqlDataAdapter dad4 = new SqlDataAdapter("select * from news where nid="+newsid,con);
        DataSet dst = new DataSet();
        dad4.Fill(dst, "aaa");
        dr = dst.Tables["aaa"].Rows[0];
    }

³£ÏêϸÐÅÏ¢: System.Data.SqlClient.SqlException: µÚ 1 ÐÐ: '=' ¸½½üÓÐÓï·¨´íÎó¡£

Ô´´íÎó:

ÐÐ 22:        SqlDataAdapter dad4 = new SqlDataAdapter("select * from news where nid="+newsid,con);
ÐÐ 23:        DataSet dst = new DataSet();
ÐÐ 24:        dad4.Fill(dst, "aaa");
ÐÐ 25:        dr = dst.Tables["aaa"].Rows[0];
ÐÐ 26: 


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Request.Params["nid"]; ûÓÐÖµ

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