题目内容 （请给出正确答案）
提问人：网友c********1 发布时间：2022年4月5日 20:11
[多项选择题]

你正在创建一个Web窗体。你写了如下的代码段去创建一个 SqlCommand对象： 现在，你需要显示Customers表中客户的数量。下面那两个代码段能达到此目的？（）

A. object customerCount = cmd.ExecuteScalar(); lblCompanyName.Text =customerCount.ToString();

B. int customerCount = cmd.ExecuteNonQuery(); lblCompanyName.Text =customerCount.ToString();

C. SqlDataReader dr = cmd.ExecuteReader(); dr.Read(); lblCompanyName.Text =dr[0].ToString();

D. SqlDataReader dr = cmd.ExecuteReader(); dr.Read(); lblCompanyName.Text = dr.ToString();

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