NSString * appstoreUrlString = @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?mt=8&onlyLatestVersion=true&pageNumber=0&sortOrdering=1&type=Purple+Software&id=APP_ID";
NSString *str = [NSString stringWithFormat: @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%@", @"954270"]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
[[UIApplication sharedApplication]openURL:[NSURL URLWithString:@"https://itunes.apple.com/cn/app/cai-bei-ke-5fen-zhong-gao/id948506126?l=en&mt=8"]];