Ask 5.3 questions about two (built-in IOS IAP).

Ask 5.3 questions about two (built-in IOS IAP). 1 is the IAP iOS integration how to achieve? 2 built in IAP seems to have the steps of unity server validation, does that mean that it has the function of preventing the iOS from purchasing the cracks?

请教两个关于5.3(内置IAP)的问题. 1.iOS的iap集成怎么实现? 2.内置IAP似乎有unity服务器验证的步骤?那是否意味着具备防止iOS内购破解的功能?