WebView与HTml

 NSMutableArray  * urlImageArray = [NSMutableArray array];
  
    NSString *leng = [wb stringByEvaluatingJavaScriptFromString:@"var images = document.getElementsByTagName('img');images.length.toString();"];
    NSLog(@"leng:%@",leng);
    for (int i=0; i<[leng integerValue]; i++) {
        NSString *strimage = [NSString stringWithFormat:@"var images = document.getElementsByTagName('img');images[%d].src.toString();",i];
        NSString *ImageUrl = [wb stringByEvaluatingJavaScriptFromString:strimage];
        [urlImageArray addObject:ImageUrl];
    }
    for (NSString * url in urlImageArray) {
        NSLog(@"%@",url);
        
        NSData * data = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]];
        UIImage * image = [UIImage imageWithData:data];
        [_picArray addObject:image];
    }