客户解密程序c++读入麻烦

Question

所以我有一个自定义解密程序，它读取输入文件并根据输入的密钥对其进行解密。文本文件：

23
11

Java 2 linux 3 fear 0 pool 2 do 0 red 1 lock. 1 I 0 random 2 computers, 0 not 0 the 0 open 2 car! 2 C, 0 lack 0 of 0 dog 1 green 2 C++ 0 bottle 2 wrong, 2 them. 0

5 1 10 21 9 6 21 11 13 16 20

此文件表示为：

[Number of Words]
[Number of Keys]

[Word] [Jump] [Word] [Jump] ... [Word] [Jump]   

[Key] [Key] ... [Key]

我已经设法让程序读取了键的数量和单词的数量，但是我无法读取单词和它们旁边的数字以及最后的数字并将它们注册为键。这是我目前所拥有的：

#include <iostream>
#include <fstream>

using namespace std;

struct pieces {

char word;
int jump;

} ;

 // Main Function
int main ()
{
// declare variables
int keyCount = 1;
int wordCount = 8;
int wordAmount[8];
int keyAmount[8];
pieces cipher[5];
char decoded[20][20];
char filename[10];
int keys[keyCount];
char tArray[20][20];
ifstream inData;

  //prompt user for input file

cout << " Enter file name: ";
cin >> filename;

inData.open(filename);

if(inData.is_open());
{

    // read list of names into array

    for ( int i = 0; i < keyCount; ++i){           

    inData >> wordAmount[i] >> keyAmount[i];

        for(int j = 0; j < wordCount; j++){

        inData >> cipher[j].word >> cipher[j].jump;

        }

    }

cout << " Key Count: " << keyCount << "\n";

    // print out 

        for ( int i = 0; i < keyCount; ++i){

    cout << " KeyAmount: ";
    cout << keyAmount[i] << "\n";
    cout << " WordAmount: ";
    cout << wordAmount[i] << "\n";

        for(int j = 0; j < wordCount; j++){

        cout << cipher[j].word << " " << cipher[j].jump;

            }

            }

    }

inData.close();

  return 0;
}

我确实尝试将 char 词作为一个数组，但后来我得到了一个分段文件。如有任何建议，我们将不胜感激！

Answer 1

恕我直言，如果您使用 std::string 并重载格式化输入运算符 >>，您的项目会更简单：

struct Word_Jump
{
  std::string word; // Using std::string because it has space for more than one character.
  int jump;
  friend std::istream& operator>>(std::istream& input, Word_Jump& wj);
};

std::istream&
operator>>(std::istream& input, Word_Jump& wj)
{
  input >> wj.word;
  input >> jump;
  return input;
}

您的输入可能如下所示：

std::vector<Word_Jump> database;
for (unsigned int i = 0; i < number_of_words; ++i)
{
  Word_Jump wj;
  my_data_file >> wj;
  database.push_back(wj);
}

同理，您输入阅读键：

std::vector<int> key_database;
for (unsigned int j = 0; j < number_of_keys; ++j)
{
  int k = 0;
  my_data_file >> k;
  key_database.push_back(k);
}

所以以上是读入单词和跳转对以及键的两种可能的方法。

客户解密程序c++读入麻烦

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