text: //
  //  ffApiSignHelper.h
  //  FFHeros
  //
  //  Created by Zhu Delun on 2018/5/15.
  //  Copyright © 2018 ZhuDelun. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface ffApiSignHelper : NSObject
  
  + (NSString *_Nullable)signQueryFrom:(nonnull NSDictionary<NSString *,NSString *> *)param withOrder:(nonnull NSArray<NSString *> *)order;
  + (NSString *_Nullable)signQueryFrom:(nonnull NSArray<NSString *> *)param withCombineComponent:(NSString *_Nullable)component;
  + (NSString *_Nullable)signQueryFrom:(nonnull NSString *)paramStr;
  
  @end
  