text: //
  //  PinyinConverter.h
  //  GroupedData
  //
  //  Created by 杨桂福 on 2021/3/18.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface PinyinConverter : NSObject
  
  + (NSString *)toPinyin:(NSString *)source;
  
  @end
  