http://pinyin.sogou.com/linux/ 2. Install the deb package
sudo dpkg -i sogoupinyin_2.0.0.0078_amd64.deb
Prompt unsuccessful, then execute
sudo apt-get install -f
Dependency packages such as fcitx will be installed.
In addition , I also installed Simplified Chinese in advance in the system settings and language , and replaced ibus with fcitx and re-executed it.
sudo dpkg -i sogoupinyin_2.0.0.0078_amd64.deb
提示 No such key 'Gtk/IMModule' in schema 'org.gnome.settings-daemon.plugins.xsettings' as specified in override file '/usr/share/glib-2.0/schemas/50_sogoupinyin.gschema.override'; ignoring override for this key
命令行输入（不要添加sudo）
fcitx-configtool
Open the configuration item of fcitx, click the + sign below, and pay attention to uncheck "Only show current language", find sogoupinyin and add it, you can switch the input method by Ctrl+space .
Reference