LFCGzipUtility An OC GZip Library saved for backup easy-to-use How to Use + (NSData *)gzipData:(NSData*)pUncompressedData; //压缩 + (NSData *)ungzipData:(NSData *)compressedData; //解压缩 Improts libz.dylib / libz.tbd ( for iOS9.0 or later )