object-c的代码例子

获得资源的接口   
 /*NSString *img1 = [[NSBundle mainBundle] pathForResource:@"ad_1"
                                                     ofType:@"png"];
    NSString *img2 = [[NSBundle mainBundle] pathForResource:@"ad_1"
                                                     ofType:@"png"];
    NSString *img3 = [[NSBundle mainBundle] pathForResource:@"ad_1"
                                                     ofType:@"png"];*/
    
    //return [UIImage imageNamed:@"Guest"];