iOS跳转AppStore评价（兼容iOS11）

- (IBAction)commentInAppStore:(id)sender {
    NSString *str = nil;
    if (@available(iOS 11.0, *)) {
        str = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/us/app/twitter/id%@?mt=8&action=write-review", AppStoreAppID];
    } else {
        str = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%@", AppStoreAppID];
    }
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
}