//應用程式主檔案夾(沙盒檔案夾 sandbox)
NSString *homePath = NSHomeDirectory();
NSLog(@"%@",homePath);
//應用程式主資源包的路徑,應用程式中的資源,在應用程式第一次執行中,會自己主動複制到應用程式的主資源包中
NSString *appPath = [[NSBundle mainBundle]bundlePath];
NSLog(@"%@",appPath);
//讀取家檔案夾中Documents檔案夾
NSString *docuPath = [homePath stringByAppendingString:@"/Documents"];
NSLog(@"%@",docuPath);
//擷取temp檔案夾
NSString *tmp = NSTemporaryDirectory();
NSLog(@"%@",tmp);
//擷取主資源包資源資料(圖檔資源在黃色檔案夾中的擷取方法)
NSString *picPath = [[NSBundle mainBundle]pathForResource:@"17_1" ofType:@"jpg"];
NSString *picPath2 = [[NSBundle mainBundle]pathForResource:@"17_2" ofType:@"jpg" inDirectory:@"images"];
NSString *picPath3 = [[NSBundle mainBundle]pathForResource:@"/images/17_2.jpg" ofType:nil inDirectory:nil];