请高手帮忙,应该如何写，才能正确传出 "AAAAA"，"BBBBB"

////============================================================通过编译
#define WIN32_LEAN_AND_MEAN  
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include   "time.h"   

#ifdef MYLIBAPI_C
#else
#define MYLIBAPI_C extern "C" __declspec(dllexport)
#endif

char  *zz=new char [200] ;
char  yy0[100];//
char  yy1[100];//
char  yy[100];//
//111----Get0----------------------------------------------------------------------------------
MYLIBAPI_C int __stdcall Set0(char *xx,int vv)//传入____ xx[0]={"AAAAA"} ;
{
    strcpy(yy0,xx);//
    printf("Get takes \"%s\"\n",xx);
    return(vv);//
}               
MYLIBAPI_C char* __stdcall Get0()// 传出____ xx[0]={"AAAAA"} ;---正确
{
    printf("Get takes \"%s\"\n",yy0);
    return(yy0);//
}               

//222---Get1-----------------------------------------------------------------------------------
MYLIBAPI_C int __stdcall Set1(char *xx,int vv)//传入____ xx[1]={"BBBBB"} ;
{
    strcpy(yy1,xx);//
    printf("Get takes \"%s\"\n",xx);
    return(vv);//
}               
MYLIBAPI_C char* __stdcall Get1()// 传出____ xx[1]={"BBBBB"} ;---正确   
{
    printf("Get takes \"%s\"\n",yy1);
    return(yy1);//
}               

//333----Get0 + Get1------------------------------------------------------------------------------------
MYLIBAPI_C char* __stdcall Get01()//xx[0]+[1]传出____ {"AAAAA"，"BBBBB"} ;---正确   
{
     strcat(yy0,yy1);//
    printf("Get takes \"%s\"\n",yy0);
    return(yy0);//
}               


//444---Get-------------------------------------------------------------------------
MYLIBAPI_C int __stdcall Set(char *xx,int vv)//传入_____ xx[]={"AAAAA"，"BBBBB"} ;
{
    zz=xx;
    printf("Get takes \"%s\"\n",xx);
    return(vv);//
}               
MYLIBAPI_C char* __stdcall Get() //传出____ "(空)" ;显示不正确，应该如何写，才能正确传出 "AAAAA"，"BBBBB"   
{
    printf("Get takes \"%s\"\n",zz);
    return(zz);//
}               
//================DLL CCC===========================================通过编译