程序内部让用户直接上appstore评价游戏的链接地址以及跳转方法

NSString *str = [NSString stringWithFormat:@"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa /wa/viewContentsUserReviews?type=Purple+Software&id=%d", Config_MyAppID];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
Config_MyAppID是itunesconnect网站上对应app的Apple ID，它是一串纯数字