摘要： 在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions中添加如下测试：NSString* path = [[NSBundlemainBundle] pathForResource:@"textfile"ofType:@"txt"]; NSStringEncoding enc = NSUTF8StringEncoding; // this is a lie, so an error will r 阅读全文