//獲取整個程式所在目錄
    NSString* homePath = NSHomeDirectory();
    NSLog(@"%@",homePath);
    //獲取.app檔案目錄
    NSString* appPath = [[NSBundle mainBundle] bundlePath];
    NSLog(@"%@",appPath);
    //獲取Documents目錄
    NSArray* arr1 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSLog(@"%@",[arr1 objectAtIndex:0]);
    //Library目錄
    NSArray* arr2 = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
    NSLog(@"%@",[arr2 objectAtIndex:0]);
    //Caches目錄，在Library下面
    NSArray* arr3 = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
    NSLog(@"%@",[arr3 objectAtIndex:0]);
    //tmp目錄
    NSString* tmpPath = NSTemporaryDirectory();
    NSLog(@"%@",tmpPath);
    //在沙盒中建立的tmp目錄
    NSString* tmpPath_1 = [homePath stringByAppendingPathComponent:@"tmp"];
    NSLog(@"%@",tmpPath_1);
    
//    新增Create Groups資料夾，使用這種方式引用資源
//    NSString* path1 = [[NSBundle mainBundle]pathForResource:@"propIcon_50000001" ofType:@"png"];
//    NSString* path2 = [[NSBundle mainBundle]pathForResource:@"propIcon_50000002.png" ofType:nil];
//    NSLog(@"%@,%@",path1,path2);

//  新增Create folder reference資料夾，使用這種方式引用資源
    NSString* path3 = [[NSBundle mainBundle]pathForResource:@"propIcon_50000003" ofType:@"png" inDirectory:@"img"];
    NSString* path4 = [[NSBundle mainBundle]pathForResource:@"propIcon_50000004" ofType:@"png" inDirectory:@"img"];
    NSString* path5 = [[NSBundle mainBundle]pathForResource:@"propIcon_50000005" ofType:@"png" inDirectory:@"img"];
    NSLog(@"%@,%@,%@",path3,path4,path5);
 

以Create Groups新增的資料夾是黃色的，往其目錄下新增資源是需要自己手動新增的。

以Create folder reference新增的資料夾是藍色的，往其目錄下新增資源，是動態更新的。