please answer

How can I add 2 pressure sensors BMP180 ? how to change sensors BMP180 address?

How hard did you look before you asked us? I googled bmp180 arduino and got almost 260,000 hits. I would think you should look at some of those before posting here.

Try this, as noted in prior reply, many tutorials can be found by googling.

https://learn.sparkfun.com/tutorials/bmp180-barometric-pressure-sensor-hookup-

dinotom:
Try this, as noted in prior reply, many tutorials can be found by googling.

BMP180 Barometric Pressure Sensor Hookup - SparkFun Learn

Afaics that tutorial is silent on the actual question the OP asked, how to change the address.

This, on the other hand, at 5.2, seems to indicate it can't be changed.

I think OP wants to use multiple BMP180 sensors on the same I2C bus.

Because they only have one fixed address, an I2C muxer of some sort has to be used.
No experience there. You could Google it, or wait 'till someone else chimes in.
Leo..

Edit: Something like this?