跳转 App Store 评分 适配IOS7

    App Store 上评论的链接地址是 itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id = appID

    所以可以用这段代码：（appID 对应自己的appID）

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1. -(void)goToAppStore  
2. {      
3.     NSString *str = [NSString stringWithFormat:  
4.                      @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%d",appID]; 
5. 
   
6. //上面的地址在ios7以后无效了。ios7只能用下面的地址了

7. if(IOS7_OR_LATER)

           str = [NSStringstringWithFormat:@"itms-apps://itunes.apple.com/app/id%d",appID];

   
   
8.     [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];  
9.       
10. }