以下是引用片段: string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd="; string SqlStr2 = "backup database " + this.DropDownList1.SelectedValue + " to disk='" + this.TextBox1.Text.Trim() + ".bak'"; SqlConnection con = new SqlConnection(SqlStr1); con.Open(); try { if (File.Exists(this.TextBox1.Text.Trim())) { Response.Write(" "); return; } SqlCommand com = new SqlCommand(SqlStr2, con); com.ExecuteNonQuery(); Response.Write(" "); } catch (Exception error) { Response.Write(error.Message); Response.Write(" "); } finally { con.Close(); } |