From Apple:
When your application is approved by Apple to sell on the App Store, it is encrypted for DRM purposes and re-compressed. When the encryption is added, the size of the compressed file will increase. The exact size of the increase will vary from app to app, however, the size increase can be large when the binary contains a lot of contiguous zeros. We are unable to guarantee the size of your file after the encryption has been added.
蘋果會(huì)對(duì)軟件包進(jìn)行重新加密與壓縮，
暫時(shí)沒(méi)有具體的解決辦法，
http://stackoverflow.com/questions/5264449/why-is-my-app-5mb-larger-on-the-app-store
這里面推測(cè)了為什么會(huì)變大
http://www.youxituoluo.com/95823.html
這里面提到bitcode 和使用Xcode6 好像可以解決，（沒(méi)有實(shí)際操作）
