获取iOS项目名称及版本号的方法（再开过程往往遇到一些问题，比如我遇到的问题是版本更新后需要清除以前的本地缓存，跳转登录页面重新登录，所以要获取app版本号存到本地，以后在appstore更新版本时，和本地版本号判断，不相等清除，相等进入）

    NSString *executableFile = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleExecutableKey];    //获取项目名称
    
    NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey];      //获取项目版本号
    
    
    
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
    // app名称
    NSString *app_Name = [infoDictionary objectForKey:@"CFBundleDisplayName"];
    // app版本
    NSString *app_Version = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
    // app build版本
    NSString *app_build = [infoDictionary objectForKey:@"CFBundleVersion"];


NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];  
 CFShow(infoDictionary);  
// app名称  
 NSString *app_Name = [infoDictionary objectForKey:@"CFBundleDisplayName"];  
 // app版本  
 NSString *app_Version = [infoDictionary objectForKey:@"CFBundleShortVersionString"];  
 // app build版本  
 NSString *app_build = [infoDictionary objectForKey:@"CFBundleVersion"];