问题:

解答:

#include <iostream>
using namespace std;

typedef struct _CandyBar
{
	string brand;
	float weight;
	int hot;
}CandyBar;

void fill(CandyBar& cb, const char* name="Millennium Munch", double w=2.85, int h=350)
{
	cb.brand = name;
	cb.weight = w;
	cb.hot = h;
}

void show(const CandyBar& cb)
{
	cout << "糖果棒的品牌为:" << cb.brand << endl;
	cout << "糖果棒的重量为:" << cb.weight << endl;
	cout << "糖果棒的热量为:" << cb.hot<< endl;

}

int main()
{
	CandyBar cb;
	fill(cb);
	show(cb);
	cout << endl;

	fill(cb, "德芙", 2.3, 231);
	show(cb);

	return 0;
}

运行结果:

考查点:

• 默认参数

注意:

• 默认参数只能从参数最左边开始设置.

2024年9月1日20:48:24