ios：给appstore评分和进入app安装页面代码

       1. 评分：
       NSString *str = [NSString stringWithFormat: @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%@", @"346703830"]; 
       [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

       2. 软件首页
       NSString *str2 = [NSString stringWithFormat: @"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=%@",  @"346703830"]; 
       [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str2]];

       其中，红色字体部分为itunesconnect中的应用程序id。