ios zip压缩解压缩

把文件导入工程，可以调用以下接口，创建ZIP或者解压ZIP文件：-(BOOL)CreateZipFile2:(NSString*)zipFile;-(BOOL)CreateZipFile2:(NSString*)zipFilePassword:(NSString*)password;-(BOOL)addFileToZip:(NSString*)filenewname:(NSString*)newname;-(BOOL)CloseZipFile2;-(BOOL)UnzipOpenFile:(NSString*)zipFile;-(BOOL)UnzipOpenFile:(NSString*)zipFilePasswo