Common sense of Apple's unique map architecture

Mobile phone or Apple phone, whether it's a computer or an installation IPA..APP, There are many basic tools and steps for the common sense of map or architecture , You have to shell out the program first , This makes it an installable program , Then use the signing certificate to sign the program , Before it can be installed on the mobile phone . Of course, you can also directly use the mountain pig sign to complete these steps on your mobile phone , And don't worry about certificates