单接口，多类的架构设计

#import "ALiLuXingViewController.h"
#import "ChongZhiViewController.h"
#import "FengLeiViewController.h"
#import "JuHuaSuanViewController.h"
#import "KouBeiWaiMaiViewController.h"
#import "LingJinBiViewController.h"
#import "TaoShengHuoViewController.h"
#import "TianMaoViewController.h"
#import "TianMaoGuoZhiViewController.h"
#import "TianMaoChaoShiViewController.h"

-(void )showALiLuXingViewController
{
    ALiLuXingViewController *aLiLuXingViewController = [[ALiLuXingViewController alloc]init];
    [self.navigationController pushViewController:aLiLuXingViewController animated:YES];
}

-(void )showChongZhiViewController
{
    ChongZhiViewController *chongZhiViewController = [[ChongZhiViewController alloc]init];
    [self.navigationController pushViewController:chongZhiViewController animated:YES];
}

-(void )showFengLeiViewController
{
    FengLeiViewController *fengLeiViewController = [[FengLeiViewController alloc]init];
    [self.navigationController pushViewController:fengLeiViewController animated:YES];
}

-(void )showJuHuaSuanViewController
{
    JuHuaSuanViewController *juHuaSuanViewController = [[JuHuaSuanViewController alloc]init];
    [self.navigationController pushViewController:juHuaSuanViewController animated:YES];
}

-(void )showKouBeiWaiMaiViewController
{
    KouBeiWaiMaiViewController *kouBeiWaiMaiViewController = [[KouBeiWaiMaiViewController alloc]init];
    [self.navigationController pushViewController:kouBeiWaiMaiViewController animated:YES];
}

-(void )showLingJinBiViewController
{
    LingJinBiViewController *lingJinBiViewController = [[LingJinBiViewController alloc]init];
    [self.navigationController pushViewController:lingJinBiViewController animated:YES];
}

-(void )showTaoShengHuoViewController
{
    TaoShengHuoViewController *taoShengHuoViewController = [[TaoShengHuoViewController alloc]init];
    [self.navigationController pushViewController:taoShengHuoViewController animated:YES];
}

-(void )showTianMaoViewController
{
    TianMaoViewController *tianMaoViewController = [[TianMaoViewController alloc]init];
    [self.navigationController pushViewController:tianMaoViewController animated:YES];
}

-(void )showTianMaoGuoZhiViewController
{
    TianMaoGuoZhiViewController *tianMaoGuoZhiViewController = [[TianMaoGuoZhiViewController alloc]init];
    [self.navigationController pushViewController:tianMaoGuoZhiViewController animated:YES];
}

-(void )showTianMaoChaoShiViewController
{
    TianMaoChaoShiViewController *tianMaoChaoShiViewController = [[TianMaoChaoShiViewController alloc]init];
    [self.navigationController pushViewController:tianMaoChaoShiViewController animated:YES];
}

2 ､单类，多接口设计：

RouteInterface.h

#ifndef ViewControllerSplit_RouteInterface_h
#define ViewControllerSplit_RouteInterface_h
@protocol RouteInterface <NSObject>

@optional
-(void )showALiLuXingViewController;
-(void )showChongZhiViewController;
-(void )showFengLeiViewController;
-(void )showJuHuaSuanViewController;
-(void )showKouBeiWaiMaiViewController;
-(void )showLingJinBiViewController;
-(void )showTaoShengHuoViewController;
-(void )showTianMaoViewController;
-(void )showTianMaoGuoZhiViewController;
-(void )showTianMaoChaoShiViewController;
@end
#endif

ViewController.h

#import <UIKit/UIKit.h>
#import "RouteInterface.h"

@interface ViewController : UIViewController

@property (nonatomic, weak ) id<RouteInterface> routeHandle;
@end
ViewController.m

-(void )showALiLuXingViewController
{
    [self.routeHandle showALiLuXingViewController];
}

-(void )showChongZhiViewController
{
    [self.routeHandle showChongZhiViewController];
}

-(void )showFengLeiViewController
{
    [self.routeHandle showFengLeiViewController];
}

-(void )showJuHuaSuanViewController
{
    [self.routeHandle showJuHuaSuanViewController];
}

-(void )showKouBeiWaiMaiViewController
{
    [self.routeHandle showKouBeiWaiMaiViewController];
}

-(void )showLingJinBiViewController
{
    [self.routeHandle showLingJinBiViewController];
}

-(void )showTaoShengHuoViewController
{
    [self.routeHandle showTaoShengHuoViewController];
}

-(void )showTianMaoViewController
{
    [self.routeHandle showTianMaoViewController];
}

-(void )showTianMaoGuoZhiViewController
{
    [self.routeHandle showTianMaoGuoZhiViewController];
}

-(void )showTianMaoChaoShiViewController
{
    [self.routeHandle showTianMaoChaoShiViewController];
}

3 ､单接口，多类设计：

RouteInterface.h

#ifndef ViewControllerSplit_RouteInterface_h
#define ViewControllerSplit_RouteInterface_h
@protocol RouteInterface <NSObject>

@optional
-(void )showViewController;
@end
#endif

ViewController.h

#import <UIKit/UIKit.h>
#import "RouteInterface.h"

@interface ViewController : UIViewController

@property (nonatomic, weak ) id<RouteInterface> aLiLuXingRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> chongZhiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> fengLeiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> juHuaSuanRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> kouBeiWaiMaiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> lingJinBiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> taoShengHuoRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoGuoZhiRouteHandle;
@property (nonatomic, weak ) id<RouteInterface> tianMaoChaoShiRouteHandle;
@end

ViewController.m

-(void )showALiLuXingViewController
{
    [self.aLiLuXingRouteHandle showViewController];
}

-(void )showChongZhiViewController
{
    [self.chongZhiRouteHandle showViewController];
}

-(void )showFengLeiViewController
{
    [self.fengLeiRouteHandle showViewController];
}

-(void )showJuHuaSuanViewController
{
    [self.juHuaSuanRouteHandle showViewController];
}

-(void )showKouBeiWaiMaiViewController
{
    [self.kouBeiWaiMaiRouteHandle showViewController];
}

-(void )showLingJinBiViewController
{
    [self.lingJinBiRouteHandle showViewController];
}

-(void )showTaoShengHuoViewController
{
    [self.taoShengHuoRouteHandle showViewController];
}

-(void )showTianMaoViewController
{
    [self.tianMaoRouteHandle showViewController];
}

-(void )showTianMaoGuoZhiViewController
{
    [self.tianMaoGuoZhiRouteHandle showViewController];
}

-(void )showTianMaoChaoShiViewController
{
    [self.tianMaoChaoShiRouteHandle showViewController];
}