https://vjudge1.github.io/2014/04/02/type-chinese-in-linux/
http://blog.csdn.net/ubuntutouch/article/details/39496249
http://my.oschina.net/u/219482/blog/341452
https://m.oschina.net/blog/166969
https://m.oschina.net/blog/468317
但是自从QT5.6版本开始的QT Creator,已经修复了这个问题,所以就不用再纠结了~