Apple 相关官方地址

https://developer.apple.com/download/more/

证书制作地址：

https://developer.apple.com/account/ios/profile/

官方固件下载地址：

https://support.apple.com/zh_CN/downloads/

Bata版开发证书：

https://beta.apple.com/sp/betaprogram/redemption?locale=zh#iosdownload

iTunes Connect:

https://itunesconnect.apple.com