可以接收数量不定的参数的函数

#include <iostream>
#include <cstdarg>int sum(int count, ...)
{//接收数量不定的参数if (count <= 0)return 0;va_list argList;va_start(argList, count);int sum = 0;for (int i = 0; i < count; ++i){sum += va_arg(argList, int);}va_end(argList);return sum;
}int main(int argc, char* argv[])
{int ret;ret = sum(3, 1, 2, 3);//6ret = sum(4, 0, 9, 8, 5);//22
system("pause");return 0;
}