[C++]猜词游戏简版

#include "pch.h"
#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
using namespace std;
const  int NUM = 26;
const string wordlist[NUM] = { "apiary","beetle","cereal",
"danger","ensign","florid","garage","health","insult",
"jackal","keeper","loaner","manage","nonce","onset",
"plaid","quilt","remote","stolid","train","useful",
"valid","whence","xenon","yearn","zippy" };
int main(void) {
    srand(time(0));
    char play;
    cout << "Will you play a word game? <y/n> ";
    cin >> play;
    while (play=='y')
    {
        string target = wordlist[rand() % NUM];
        int length = target.length();
        string attempt(length, '-');
        string badchars;
        int guesses = 6;
        cout << "Guess my secret word. It has " << length << " letters, and you guess
" << "one letter at a time. You get " << guesses << " wrong guesses.
";
        cout << "Your word: " << attempt << endl;
        while (guesses>0&&attempt!=target)
        {
            char letter;
            cout << "Guess a letter: ";
            cin >> letter;
            if (badchars.find(letter) != string::npos || attempt.find(letter) != string::npos) {
                cout << "You already guessed that. Try again.
";
                continue;
            }
            int loc = target.find(letter);
            if (loc == string::npos) {
                cout << "Oh, bad guess!
";
                --guesses;
                badchars += letter;
            }
            else {
                cout << "Good guess!
";
                attempt[loc] = letter;
                loc = target.find(letter, loc + 1);
                while (loc!=string::npos)
                {
                    attempt[loc] = letter;
                    loc = target.find(letter, loc + 1);
                }
            }
            cout << "Your word: " << attempt << endl;
            if (attempt != target) {
                if (badchars.length() > 0)
                    cout << "Bad choices: " << badchars << endl;
                cout << guesses << " bad guesses left
";
            }
        }
        if (guesses > 0)
            cout << "That's right!
";
        else
            cout << "Sorry, the word is " << target << ".
";
        cout << "Will you play another? <y/n> ";
        cin >> play;
        play = tolower(play);
    }
    cout << "Bye!
";
    return 0;
}