local d_2 = {}
function d_2.写件(u1, u2, o3)
function d_2.写件(u1, u2, u3)
  local k1_3
  k1_3 = io.open(u2, o3 or "w")
  k1_3 = io.open(u2, u3 or "w")
  k1_3:write(u1)
  k1_3:flush()
  k1_3:close()
  end
return d_2