iOS使用核心的50行代码撸一个路由组件

以上步骤对应的代码如下：

- (void)registerPath:(NSString *)path actionBlock:(RouterActionBlock)actionBlock {
 YTRouterActionObject *actionObject = [YTRouterActionObject new];
 actionObject.path = path;
 actionObject.actionBlock = actionBlock;
 NSMutableDictionary *subRouter = [self subRouterMapWithPath:path];
 subRouter[YTRouterActionObjectKey] = actionObject;
}
- (NSMutableDictionary *)subRouterMapWithPath:(NSString *)path {
 NSArray *components = [path componentsSeparatedByString:@"/"];
 NSMutableDictionary *subRouter = self.routerMap;
 for (NSString *component in components) {
  if (component.length == 0) {
   continue;
  }
  if (!subRouter[component]) {
   subRouter[component] = [NSMutableDictionary new];
  }
  subRouter = subRouter[component];
 }
 return subRouter;
}

Printing description of self->_routerMap:
{
 home =  {
  "_" = "<YTRouterActionObject: 0x60c00003b040>";
  messagelist =   {
   "_" = "<YTRouterActionObject: 0x6040000365e0>";
   detail =    {
    "_" = "<YTRouterActionObject: 0x600000038ec0>";
   };
   getmessage =    {
    "_" = "<YTRouterActionObject: 0x600000038e80>";
   };
  };
 };
}