Firstly, install wget, privoxy, then
schedule a task three minutes one time just like: someone>$ wget https://bridges.torproject.org. Then you can get a lot of .htmlxxx files which contain the bridges from the website. Lastly, write a bash command or _vbscript_ under windows, you can grap the xxx.xxx.xxx.xxx:xxxx from the .htmlxxx files, and insert into the torrc file. It 's done! I hope that I can do this again!