//关闭当前页面跳转到下一个页面
LogViewController*b = [[LogViewControlleralloc]init];
NSArray*vcs =self.navigationController.viewControllers;
NSMutableArray*newVCS = [NSMutableArrayarray];
if([vcscount] >0) {
for(inti=0; i < [vcscount]-1; i++) {
[newVCSaddObject:[vcsobjectAtIndex:i]];
}
}
[newVCSaddObject:b];
[self.navigationControllersetViewControllers:newVCSanimated:YES];