变量生存期与作用域（P116）

#include<iostream>
using namespace std;

int x = 11;
char ch = '1';
void fun1(int ipara1);
void fun2()
{
int i = 22222;
double ch = 202.2;
cout<<"在fun2中 -x="<<x<<",\tch="<<ch<<",\ti="<<i<<endl;
}

int main()
{
cout<<"在main中 -x="<<x<<",\tch="<<ch<<endl;
fun1(x);
fun2();
return 0;
}

void fun1(int ii)
{
int i = 21111;
int x = 201;
cout<<"在fun1中 -ii="<<ii<<",\tx="<<x<<",\tch="<<ch
<<",\ti="<<i<<endl;
}