Question

#include <iostream>
#include <string.h>
#include <conio.h>

using namespace std;

int main()
{
char option;
int choice;
string str;

string text[39] = {"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z",
        "1","2","3","4","5","6","7","8","9","0","STOP",",","?"};
string morse[39] = {".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--","-.","---",".--.",
                    "--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--..",".----","..---","...--","....-",
                    ".....","-....","--...","---..","----.","-----",".-.-.-","--..--","..--.."};

do{
    system("cls");

    cout << "1. Encode(Text to Morse)\n";
    cout << "2. Decode(Morse Code to Text)\n";
    cout << "3. Display the Morse Code\n";
    cout << "4. Quit\n";
    cout << "\nEnter a number 1-4: ";
    cin >> choice;
    switch(choice)
    {
    case 1:
       {
        cout << "Enter text: ";
        cin.ignore();
        getline(cin,str);

        cout << "\n";
        cout << "The target string to be translated is:";
        cout << str;


        cout << "\n\nNumber of characters in the string is "<<str.length();
        cout << "\nIn Morse the message is:\n";
        int i; //string position  counter
        int a; //morse code finder loop counter

        i = 0;
        while (i<str.length())  //to loop every single position in the string.
        {
            a = 0;

            if((str[i] >= 'a') && (str[i] <= 'z'))   // upcase everything
                str[i] = toupper(str[i]);

            string n = "";
            n += str[i];     // convert str[i] (a char) to string.

            while ( a<= 39 ) // to find the matching morse code to that character.
            {
                if (n == text[a])
                {
                   cout << morse[a] << " ";
                }
                a += 1;
            }

            if(str[i] == ' ')
               cout << "\n";

            i += 1;
        }

        cout << "Run this again?(y/n)\n";
        cin >> option;
       }
        break; 
       default:
}
}while((option == 'y')||(option=='Y'));
}

我还没有完成剩下的工作，但这部分一直在崩溃。我认为循环有问题。我无法弄清楚哪个部分出了问题.. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Answer 1

你的问题在这里：

a<= 39

数组的大小为39，因此索引39超出范围。

应该是：

a < 39

C ++ Morse Code翻译器，我的程序一直在崩溃

1 个答案: