C++ 不定参数...

#include<bits/stdc++.h>
using namespace std;
//count用于表明后续需要读入多少个参数
void sum(int count,...)
{
	va_list v;
	va_start(v, count);
	
	int ans = 0;
	
	cout << "参数个数为：" << count << endl;
	
	for(int i=0;i<count;i++)
	{
		int value = va_arg(v, int);
		cout << value << " ";
		ans += value;
	}
	cout << endl;
	
	va_end(v);
	cout << "和为：" << ans << endl;
}
int main()
{
	sum(5, 1, 2, 3, 4, 5);
}