编写猜数小游戏。要去玩家从数列中猜一个数，每猜对一个加一分，并（使用文件）记录玩家的最高分。
//----斐波那契数列 猜数游戏----
//----时间：2019.11.20---------
//
#include<vector>
#include<string>
#include<iostream>
#include<fstream>
#include<cstdlib>
#include<time.h>
using namespace std;
//斐波那契数列生成函数
//输入参数：int 数列大小
//返回值:斐波那契数组首地址
const vector<int>*
fibon_seq(int size)
{
static vector<int> elems;
const int max_size = 1024;
if (size <= 0 || size > max_size)
{
cerr << "错误的大小\n";
return 0;
}
for (int ix = elems.size(); ix < size; ++ix) {
if (ix == 0 || ix == 1)
elems.push_back(1);
else
elems.push_back( elems[ix - 1] + elems[ix - 2]);
}
return &elems;
}
void write_score_file(string user_name,int num_right)
{
ofstream outfile("score.txt",ios_base::app); //追加模式打开
if (!outfile) {
cerr << "无法打开score.txt\n";
}
else {
outfile << user_name<<' '<<num_right<<endl;
}
}
void read_score_file(string &user_name, int & num_right) {
ifstream infile("score.txt");
if (!infile) {
cerr << "无法打开文件score.txt\n";
}
else {
string name;
int n_right;
while (infile >> name) {
infile >> n_right;
if (name == user_name && n_right>num_right) {
num_right = n_right;
}
}
}
}
int main()
{
string user_name;
int num_right = 0;
int highest_score = 0; //最高分
cout << "Please enter your name:";
cin >> user_name;
cout << "\n"
<< "Hello,"
<< user_name
<<endl;
int fibo_size = 10;
const vector<int>* fibo = fibon_seq(fibo_size);
for (int i = 0; i < (*fibo).size(); i++) {
cout << "第" << i + 1 << "个：" << (*fibo)[i] << ' ';
if ((i + 1) % 3 == 0)
cout << "\n";
}
cout << endl;
bool willing_try = true;
while (willing_try) {
srand((unsigned)time(NULL));
int index = rand() % fibo_size;
cout << "猜一个数:";
int n;
cin >> n;
if (n == (*fibo)[index]) {
cout << "猜对了\n再猜一次吗(y\n)";
num_right++;
}
else {
if (n > (*fibo)[index])
cout << "太大了\n";
else
cout << "太小了\n";
cout << "再猜一次吗(y\n):";
}
char choice;
cin >> choice;
if (choice != 'y' && choice != 'Y') {
willing_try = false;
}
}
if (num_right > highest_score)
{
cout << "\n----新纪录: " << num_right<<"----"<< endl;
write_score_file(user_name, num_right);
}
return 0;
}
