我正在尝试编写一个执行任务的子手程序。我已经写了我认为可以正常工作的代码，但是用“不可能”这个秘密词测试它时，它只会读取“ I”，而没有其他内容。我尝试将所有字符串更改为字符列表，但我认为这不是问题。有人对我做错的事情有任何建议吗？ 谢谢， 基思 这是代码：
/* CSCI 261 Assignment 5: Hang Man Game
*
* Author: Keith Danielson
*
* A program that runs a simple hang man game
*/
// The include section adds extra definitions from the C++ standard library.
#include <iostream> // For cin, cout, etc.
#include <string>
// We will (most of the time) use the standard library namespace in our programs.
using namespace std;
//Defining the secret word as a constant
//const string SECRET_WORD = "IMPOSSIBLE";
int main() {
const char SECRET_WORD[10] = {'I','M','P','O','S','S','I','B','L','E'};
const int SECRET_WORD_LENGTH = 10;
//Defining the number of wrong guesses available, found letters, wrong guesses, and user choice.
int guesses = 7;
char foundLetters[SECRET_WORD_LENGTH];
char wrongGuesses[guesses];
char userChoice;
//Filling foundLetters with underslashes based on the length of the secret word.
for (int i = 0; i <= SECRET_WORD_LENGTH; i++) {
foundLetters[i] = '_';
}
cout << "Welcome to hangman!" << endl;
for (int i = 0; i <= 7; i++) {
if (guesses == 0){
break;
}
cout << "Take a guess: ";
for (int j = 0; j <= SECRET_WORD_LENGTH; j++) {
cout << foundLetters[j] << " ";
}
cout << "\n" << "Your guess: ";
cin >> userChoice;
//if the user input is lowercase it'll be made upper case.
if (islower(userChoice)) {
userChoice = toupper(userChoice);
}
for (int j = 0; j <= SECRET_WORD_LENGTH; j++) {
//if (userChoice == foundLetters[j]) {
// cout << "You already guessed" << userChoice << "." << endl;
// break;
//}
if (userChoice == SECRET_WORD[j]) {
cout << "There's a " << userChoice << "!" << endl;
foundLetters[j] = userChoice;
break;
}
else if (userChoice != SECRET_WORD[j]) {
guesses = guesses - 1;
cout << "Sorry. No " << userChoice << "'s." << endl;
wrongGuesses[i] = userChoice;
if (guesses == 0) {
cout << "You lose! Try again.";
break;
}
else {
cout << "You have " << guesses << " remaining." << endl;
break;
}
}
}
}
return 0; // signals the operating system that our program ended OK.
}
答案 0 :(得分：0)
请尝试以下类似操作：
// The include section adds extra definitions from the C++ standard library.
#include <iostream> // For cin, cout, etc.
#include <string>
#include <limits>
// We will (most of the time) use the standard library namespace in our programs.
using namespace std;
//Defining the secret word as a constant
const char SECRET_WORD[10] = {'I','M','P','O','S','S','I','B','L','E'};
const int SECRET_WORD_LENGTH = 10;
//Defining the number of wrong guesses available
const int WRONG_GUESSES = 7;
bool hasLetter(const char *letters, int numLetters, char ch) {
for (int i = 0; i < numLetters; ++i) {
if (letters[i] == ch) {
return true;
}
}
return false;
}
int main() {
char foundLetters[SECRET_WORD_LENGTH];
int foundLetters = 0;
char wrongLetters[WRONG_GUESSES];
int wrongLettersLength = 0;
int wrongGuessesLeft = WRONG_GUESSES;
char userChoice;
int found;
//Filling foundLetters with underslashes based on the length of the secret word.
for (int j = 0; j < SECRET_WORD_LENGTH; ++j) {
foundLetters[j] = '_';
}
cout << "Welcome to hangman!" << endl;
while (true) {
cout << "Take a guess: ";
for (int j = 0; j < SECRET_WORD_LENGTH; ++j) {
cout << foundLetters[j] << " ";
}
cout << "\n";
cout << "Your guess: ";
cin >> userChoice;
cin.ignore(numeric_limits<streamsize>::max(), '\n');
//if the user input is lowercase it'll be made upper case.
userChoice = toupper(userChoice);
if (hasLetter(foundLetters, SECRET_WORD_LENGTH, userChoice) ||
hasLetter(wrongGuesses, wrongGuessesLength, userChoice))
{
cout << "You already guessed " << userChoice << "." << endl;
continue;
}
found = 0;
for (int j = 0; j < SECRET_WORD_LENGTH; ++j) {
if (SECRET_WORD[j] == userChoice) {
foundLetters[j] = userChoice;
++found;
}
}
if (found > 0) {
cout << "There's " << found << " " << userChoice << (found > 1 ? "'s" : "") << "!" << endl;
foundLettersLength += found;
if (foundLettersLength == SECRET_WORD_LENGTH) {
cout << "You win!";
break;
}
}
else {
cout << "Sorry. No " << userChoice << "'s." << endl;
wrongLetters[wrongLettersLength++] = userChoice;
if (--wrongGuessesLeft == 0) {
cout << "You lose! Try again.";
break;
}
cout << "You have " << wrongGuessesLeft << " guess" << (wrongGuessesLeft > 1 ? "es" : "") << " remaining." << endl;
}
}
return 0; // signals the operating system that our program ended OK.
}
或者：
// The include section adds extra definitions from the C++ standard library.
#include <iostream> // For cin, cout, etc.
#include <string>
#include <limits>
#include <set>
// We will (most of the time) use the standard library namespace in our programs.
using namespace std;
//Defining the secret word as a constant
const string SECRET_WORD = "IMPOSSIBLE";
//Defining the number of wrong guesses available
const int WRONG_GUESSES = 7;
int main() {
//Filling foundLetters with underslashes based on the length of the secret word.
string foundLetters(SECRET_WORD.size(), '_');
set<char> guessedLetters;
int wrongGuessesLeft = WRONG_GUESSES;
char userChoice;
int found;
cout << "Welcome to hangman!" << endl;
while (true) {
cout << "Take a guess: ";
for (int j = 0; j < foundLetters.size(); ++j) {
cout << foundLetters[j] << " ";
}
cout << "\n";
cout << "Your guess: ";
cin >> userChoice;
cin.ignore(numeric_limits<streamsize>::max(), '\n');
//if the user input is lowercase it'll be made upper case.
userChoice = toupper(userChoice);
if (!guessedLetters.insert(userChoice).second)
{
cout << "You already guessed " << userChoice << "." << endl;
continue;
}
string::size_type pos = SECRET_WORD.find(userChoice);
if (pos != string::npos) {
found = 0;
do {
foundLetters[pos] = userChoice;
++found;
pos = SECRET_WORD.find(userChoice, pos+1);
}
while (pos != string::npos);
cout << "There's " << found << " " << userChoice << (found > 1 ? "'s" : "") << "!" << endl;
if (foundLetters == SECRET_WORD) {
cout << "You win!";
break;
}
}
else {
cout << "Sorry. No " << userChoice << "'s." << endl;
if (--wrongGuessesLeft == 0) {
cout << "You lose! Try again.";
break;
}
cout << "You have " << wrongGuessesLeft << " guess" << (wrongGuessesLeft > 1 ? "es" : "") << " remaining." << endl;
}
}
return 0; // signals the operating system that our program ended OK.
}