IOS初级：SDWebImage

简单用法

#import "ViewController.h"
#import "SDWebImage/UIImageView+WebCache.h"

@interface ViewController ()

@property (strong, nonatomic) IBOutlet UIImageView *img;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    NSURL *imgPath = [NSURL URLWithString:@"http://demo.com/app/images/5.jpg"];
    [self.img setImageWithURL:imgPath];
}