假如有两个ViewController A,B
修改B的返回按钮需在A页面设置
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"返回"
style:UIBarButtonItemStylePlain target:nil action:nil];
原文地址:http://blog.csdn.net/gorgeous_xie/article/details/40187947