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#include <iostream>
#include <locale>
using namespace std;
int main()
{
//使用template <class T> numeric_limits;
//http://www.cplusplus.com/reference/limits/numeric_limits/
cout << "double maxvalue" << numeric_limits<double>::max() << endl;
cout << "double minvalue" << numeric_limits<double>::min() << endl;
return 0;
}