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1, memory management Simple Introduction1, why should I have memory management? malloc selloc dealloc ' need to go back to reviewThe general memory 4s is 512m memory; 6 is 1024m memory;When memory is too large, memory is exhausted. There is a program flash back.2, OC Memory Management range:Manages any inherited NSObject objects that are not valid for other basic data types.3, the object type is dynamically

fact, female siblings are more beautiful, and Japanese students are more beautiful) Therefore, from the perspective of cost effectiveness, it is the best choice to see a single person. The details are as follows: 1. The cost is relatively low and can afford it. Every 3000 to 4000 yen, each person can catch up with 2500 yen at a low cost; the core RMB is 150 to 250 yuan; 2. The performances on stage must be performed by the Japanese mm and will not i

In iOS, Reachability is used to detect the network type of the mobile phone. Wi-Fi and 2 3 4G, iosreachability If you want to provide a Reeder In the iOS program, or provide offline mode (Evernote) in the absence of a network ). Then you will use the Reachability for network detection. Purpose of writing this article Understand what Reachability can do Detection 3