如何点击链接直接跳转到app store指定应用下载页面

1. NSString *str = [NSString stringWithFormat:@"http://itunes.apple.com/us/app/id%d", 436957167];  

1. [[UIApplication sharedApplication] openURL:[NSURL urlWithString:str]]; 

其中，436957167是appid

附：跳转到评价页面：

 NSString *str = [NSString stringWithFormat:
                          @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%d",
                          436957167 ];
 [[UIApplication sharedApplication] openURL:[NSURL urlWithString:str]];