For developers, Linux's English environment is very suitable for development systems, but the default English environment has no Chinese input method, so how can I enter Chinese in an English environment, this is to use Fcitx. FcitX - Small Penguin Input Method, Free Chinese Input Toy for X, it is a GPL-released, XIM-based Simplified Chinese input method (ie the original g five pen), including five, pinyin (full fight and double fight) , Two, location and other input modules, is the Chinese input method used in the Linux operating system, of course, you can use it in the official station http://www.fcitx.org/main/ download. For how to install Fcitx This article does not make a detailed explanation, please refer to the relevant documentation related to the official website. I am using the RPM package installation, version 3.0, after the FCITX installation is complete and reopen, you can see the FCITX control strip appears on the center of the screen, but it is not possible to open the input box with Ctrl Space. We must first edit / etc / sysconfig / i18n, plus lc_cType = "en_cn", save exit and restart X Window, then enter Chinese by pressing Ctrl Space.