问题:

解答:

#include <iostream>
#include <cstring>

using namespace std;

struct stringy
{
	char* str;
	int ct;
};

void show(const stringy& s, int n=0)
{
	if (n == 0)n++;
	for (int i = 0; i < n; i++)
	{
		cout << s.str << endl;
	}
}

void show(const char *c, int n = 0)
{
	if (n == 0)n++;
	for (int i = 0; i < n; i++)
	{
		cout <<c<< endl;
	}
}

void set(stringy& s, char* test)
{
	int len = strlen(test);
	char* c = new char[len];
	c = test;
	s.str = new char[len];
	s.ct = len;
	strcpy(s.str, c);
}

int main()
{
	stringy beany;
	char testing[] = "Reality isn't what it used to be.";
	set(beany, testing);
	show(beany);
	cout << endl;
	show(beany, 2);
	cout << endl;
	testing[0] = 'D';
	testing[1] = 'u';
	show(testing);
	cout << endl;
	show(testing, 3);
	cout << endl;
	show("Done!");
	cout << endl;

	return 0;
}

运行结果:

考查点:

• 函数重载
• strcpy()
• strlen()
• 动态内存分配

2024年9月1日21:21:15