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Question

        public SqlTransaction OpenTrans()
        {
            //SqlConnection con = new SqlConnection(SqlHelper.ConnectString);
            //con.Open();
            //SqlTransaction tran = con.BeginTransaction();
            //return tran;
            using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectString))
            {
                conn.Open();
                using (SqlTransaction tran = conn.BeginTransaction())
                { return tran;}
            }
        }

Answer 1

        public SqlTransaction OpenTrans()
        {
            //SqlConnection con = new SqlConnection(SqlHelper.ConnectString);
            //con.Open();
            //SqlTransaction tran = con.BeginTransaction();
            //return tran;
            using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectString))
            {
                conn.Open();
                using (SqlTransaction tran = conn.BeginTransaction())
                { return tran;}
            }
        }
晕我只是在测试如何用 csdn 发c# 代码

Answer 2

漏洞还是有的 比如：
string str = "<img src=\"#\" />";

Answer 3

嗯麻烦LZ再测试下如何结帖HOHO...