c# - ASP.net C#替换字符串不起作用

        // Build email link
        confirmLink = Master.siteDomain + "/newsLetter.aspx?action=confirm&e=" + emailAddress + "&code=" + verCode;

        using (SqlCommand cmd = new SqlCommand("SELECT newRegEmailBody, newRegEmailSubj FROM tblSiteSettings WHERE (isActive = 1)", Master.cn))
        {
            SqlDataReader rdr = cmd.ExecuteReader();
            if (rdr.Read())
            {
                emailBody = rdr[0].ToString();
                emailSubj = rdr[1].ToString();
            }
            rdr.Close();
        }
        emailBody.Replace("[CONFIRMATION_LINK]", confirmLink);
        emailer.sendEmail(emailAddress, Master.noReplyEmail, emailSubj, emailBody);

看起来一切正常，除了正文中仍显示[CONFIRMATION_LINK]以外，有什么想法吗？

最佳答案

字符串是不可变的。字符串操作通常返回新的字符串实例。
尝试这个：

emailBody = emailBody.Replace("[CONFIRMATION_LINK]", confirmLink);