thanks for the reply!
oh i missed a thing..i have a dht11,not dht22 (it's not arrived yet),also bmp85 and dallas ds18xx (don't remember names..)but used dht for the facility and because this sketch uses it.changed in the define dht to dht11,but as i sad,with resistor between data and 5v the serial monitor give "failed to read dht sensor H 0.00 T 0.00..only without it begin works as intended.strange...not?
As of now anyway i find the most accurate the dallas ds18xx...but a bit complicated to set.i awaiting the dht22\am2302 one,but as you sad and for what i red,it's very accurate and good!