yesterday i installed the deepin 2014,because i installed the system  by using unetbootin, so when i finally get into the system the default language becomes english.
there are two problems :when i use the way in this forum suggested to change the default language(sudo gedit /etc/default/locale), i can`t input my password even any other character.
the problems two:even i know my computer had already installed sougou input,i still can`t input chinese character in any situation. just like alt+space. ctrl+space it`s useless.  
i wonder is there any body who can help me to deal with the two problems!thank you ,and i finally know why there`s some people ask some question in english in this forum!