For some novice Mac preferences do not know what in the end is? What is the use? In fact, almost all of the system-related settings will appear in the Mac system in the System Preferences.
Switching system your language and
drag the left of the entry in the language of the language and regional settings you can switch the language of the system.
If you need a language does not appear in the list on the left, can be selected by clicking on the plus sign in the bottom left corner. The default in the first place is the system default language.
Setting the language to start a different program, click the App tab
Click the plus sign the lower right corner of the application can set the default startup language alone. You can in the English interface system, using the Chinese software interface.
How to modify the Input menu?
Setting input in the input method window keyboard settings, lower-left corner may be increased to remove plus or minus sign input. Install third-party input method need to download third-party websites. Mac system currently supports third-party input method Sogou, Tencent. 
How Mac systems to switch the input method?
If you just bought a new computer system, switch the input method is Control - space key, hold down the Control key and the space will be three seconds Input menu can list for you to choose. (Old method using a computer input switching Command- spaces)
More MacOS tutorials, please visit our website https://www.macdown.com