Mac Open App tutorial for unidentified developers

Mac opens the app tutorial for unidentified developers. Now, many people are using the Mac computer, many people have encountered, can not open the "XXX" hint, this is because the identity of the developer can not be confirmed? I believe many users who use Macs have come across this app that can't open an unidentified developer. In fact, this is mainly the system preferences of the gatekeeper to prevent the application is not from the App Store or not recognized by Apple, which is the system for security reasons, the default settings, the following small set to share with everyone Mac open identity developers of the application tutorial.

1, in the dock bar to find "system preferences" and open, as shown in the following figure

2, in the pop-up window to choose Security and privacy. As shown in the figure

3, click on the lower left corner of the small lock to unlock, you can make changes. Here you can set up, apply the trust option.

4, before the change needs to enter the authentication information, the password is the computer password.

5, after unlocking, select "any source."