截取文件路径相关的 Api
// 数据库路径
NSString *url = @"/Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233.db";
NSLog(@"%@",[url lastPathComponent]);
// Shark-233.db
NSLog(@"%@",[url stringByDeletingLastPathComponent]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB
NSLog(@"%@",[url pathExtension]);
// db
NSLog(@"%@",[url stringByDeletingPathExtension]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233
NSLog(@"%@",[url stringByAbbreviatingWithTildeInPath]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233.db
NSLog(@"%@",[url stringByExpandingTildeInPath]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233.db
NSLog(@"%@",[url stringByStandardizingPath]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233.db
NSLog(@"%@",[url stringByResolvingSymlinksInPath]);
// /Users/Dalang/Library/Developer/CoreSimulator/Devices/62D1B0C1-310F-4934-81C7-433F03EBC907/data/Containers/Data/Application/A7802BF0-67C9-46BC-9E26-943A3132DD5B/Documents/SharkDB/Shark-233.db
NSLog(@"%@",[[url lastPathComponent] stringByDeletingPathExtension]);
// Shark-233
