1.打开终端
2.使用gedit打开 /etc/apt 目录下的sources.list
输入gedit /etc/apt/sources.list
3.添加镜像源（just加快速度）我用了中科大源一直安装不了，后面使用163源才安装下来

deb http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib

4.保存后在终端输入
apt-get update
apt-get upgrade
5.安装输入法了

#经典的ibus
apt-get install ibus ibus-pinyin    
# fcit     
apt-get install fcitx fcitx-pinyin fcitx-module-cloudpinyin fcitx-googlepinyin       
#拼音五笔
apt-get install fcitx-table-wbpy ttf-wqy-microhei ttf-wqy-zenhei                                 

6、最后重启后就可切换中文输入法了。（Ctrl+Space）