C++分离头文件和源文件

我是C++的新手，到目前为止，我已经将所有代码放在同一个文件中。现在，随着我的进展，我需要将我的代码分离到我不太熟悉的源文件和头文件中。

我可以让它与简单的任务一起工作，但在这个程序中，我现在试图将其划分为单独的文件，这会给我一个错误，而当我将所有内容都放在一个文件中时，我可以编译它。

我被错误信息卡住了

main.cpp:10:1: error: unknown type name 'textEditor'
textEditor siEditor;

如果有人能解释我为什么会遇到这个错误，以及如何防止它，我将不胜感激。我读到它可能与重复的声明有关，但我不明白从哪里来的。

这就是我的main.cpp的样子：

#include <iostream>
#include <fstream>
using namespace std;
#include "textData.h"
#include "textEditor.h"
textData siData;
textEditor siEditor;
int main() 
{
cout << "nWelcome to siEdit!" << endl;
while (true) 
{
cout << "nWhat would you like to do? nNew file = n, Append = a, View = v, Quit = q: ";
string toDo;
cin >> toDo;
if (toDo == "n")
{
siEditor.openText();
cout << "Now editing the file: " << siData.fileName.c_str() << endl;
cout << "Type '=!' to stop editing and save. n " << endl;
siEditor.writeText();
}
else if (toDo == "a")
{
siEditor.appendTextOpen();
cout << "Now appending text: " << siData.appendTextfileName.c_str() << endl;
cout << "Type '=!' to stop editing and save changes. n " << endl;
siEditor.appendText();
}
else if (toDo == "v")
{
siEditor.readText();
cout << "n";
}
else if (toDo == "q")
{
return 0;
}
else 
{
cout << "Invalid input." << endl;
}
}
}

siEdit.cpp:

#include <iostream>
#include <fstream>
using namespace std;
#include "textData.h"
#include "textEditor.h"
textData siData;
class textEditor
{
public: 
void openText()
{   
//when associated file is open. 
while (siData.siFile.is_open())
{
siData.siFile.close();
}
cout << "nWhat do you want to call your file? ";
cin >> siData.fileName;
//Creates / Opens fileEditor
const char* path = siData.fileName.c_str();
siData.siFile.open(path);
}
void writeText()
{
bool editing = true;
bool hasEditing = false;
while (editing == true)
{
//Get user input
string input = " ";
getline(cin, input);
string yesNo;
if (input == "=!") 
{   
cout << "Would you like to save the file? Y/N" << endl;
cin >> yesNo;
if (yesNo == "Y")
{
cout << "Filed saved: " << siData.fileName.c_str();
editing = false;
}   
else if (yesNo == "N")
{
cout << "No changes have been saved. Exiting." << endl;
hasEditing = false;
editing = false;
siData.siFile.clear();
}
else 
{
cout << "Invalid input. Type '=! to exit." << endl;
}
}       
else
{
siData.siFile << input;
siData.siFile << endl;
hasEditing = true;
}
}
}

void readText()
{
string line;
cout << "nEnter the name of your file: ";
cin >> siData.fileName;
cout << "n";
const char* path = siData.fileName.c_str();
// input file stream
//Internal stream buffer which performes I/O on file.
ifstream siFileRead(path);
if(siFileRead.is_open())
{
while(getline(siFileRead,line))
{
cout << line << endl;
siData.siFile << line;
}
}
else
{
cout << "Unable to open file. Confirm name and file location.";
}
}
// open the existing text file
void appendTextOpen()
{
while (siData.siFileAppend.is_open())
{
// erase previous text
siData.siFileAppend.clear();
// close the input text file
siData.siFileAppend.close();
}
cout << "nEnter the name of the file: ";
//find file name.
cin >> siData.appendTextfileName;
//Makes / Opens file
const char* path = siData.appendTextfileName.c_str();
siData.siFileAppend.open(path, fstream::app);
}
//add text together with previous input.
void appendText()
{
bool editing = true;
bool hasEditing = false;
while (editing == true)
{
//Gets user input
string input = " ";
getline(cin, input);
if (input == "=!")
{
if (hasEditing == true)
{
cout << "File saved: " << siData.appendTextfileName.c_str() << endl;
editing = false;
}
}
else
{
siData.siFileAppend << input;
siData.siFileAppend << endl;
hasEditing = true;
}
}
}
};

text数据.h:

#ifndef SIEDITOR_H
#define SIEDITOR_H
class textData
{
public: 
string fileName;
string appendTextfileName;
ofstream siFile;
ofstream siFileAppend;
};
#endif

text编辑器.h:

#ifndef SIEDITOR_H
#define SIEDITOR_H
class textEditor
{
public: 
void openText()
void writeText()
void readText()
void appendTextOpen()
void appendText()
};

#endif