#include<iostream>
#include<stdlib.h>
#include<string>
#include<windows.h>
using namespace std;
int value=0;
void printvalue()
{
printf("::value=%d\n",value);
}
int main(void)
{
int value;
value=1;
printf("value=%d\n",value);//1
::value=2;
printvalue();//2
system("pause");
return 0;
}
