#include<iostream>
using namespace std;
int fun()
{
    static int x=0;  // static静态局部变量:只初始化1次
    x++;
    return x;
}
int main()
{
    int i;
    for(i=0;i<10;i++)
    {
        cout<<fun()<<"\t";
    }
    cout<<endl;
    return 0;
}

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