c++文件管理系统

文件管理系统通常需要实现以下功能：

1. 文件的创建、复制、删除等基本操作
2. 文件夹的创建、复制、删除等基本操作
3. 文件和文件夹的重命名操作
4. 文件和文件夹的移动操作
5. 文件和文件夹的搜索操作
6. 文件和文件夹的信息查看操作

以下是一个简单的 C++ 文件管理系统的示例代码：

#include <iostream>
#include <fstream>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>

using namespace std;

void createFile(string filePath) {
    ofstream file;
    file.open(filePath);
    file.close();
    cout << "File created successfully!" << endl;
}

void copyFile(string sourcePath, string destPath) {
    ifstream source(sourcePath, ios::binary);
    ofstream dest(destPath, ios::binary);
    dest << source.rdbuf();
    cout << "File copied successfully!" << endl;
}

void deleteFile(string filePath) {
    if (remove(filePath.c_str()) != 0) {
        cout << "Error deleting file!" << endl;
    } else {
        cout << "File deleted successfully!" << endl;
    }
}

void createDirectory(string dirPath) {
    if (mkdir(dirPath.c_str(), 0777) != 0) {
        cout << "Error creating directory!" << endl;
    } else {
        cout << "Directory created successfully!" << endl;
    }
}

void copyDirectory(string sourcePath, string destPath) {
    DIR* dir = opendir(sourcePath.c_str());
    struct dirent* entry;
    while ((entry = readdir(dir)) != NULL) {
        string fileName = entry->d_name;
        if (fileName != "." && fileName != "..") {
            string sourceFilePath = sourcePath + "/" + fileName;
            string destFilePath = destPath + "/" + fileName;
            struct stat s;
            if (stat(sourceFilePath.c_str(), &s) == 0) {
                if (s.st_mode & S_IFDIR) {
                    createDirectory(destFilePath);
                    copyDirectory(sourceFilePath, destFilePath);
                } else {
                    copyFile(sourceFilePath, destFilePath);
                }
            }
        }
    }
    closedir(dir);
    cout << "Directory copied successfully!" << endl;
}

void deleteDirectory(string dirPath) {
    DIR* dir = opendir(dirPath.c_str());
    struct dirent* entry;
    while ((entry = readdir(dir)) != NULL) {
        string fileName = entry->d_name;
        if (fileName != "." && fileName != "..") {
            string filePath = dirPath + "/" + fileName;
            struct stat s;
            if (stat(filePath.c_str(), &s) == 0) {
                if (s.st_mode & S_IFDIR) {
                    deleteDirectory(filePath);
                } else {
                    deleteFile(filePath);
                }
            }
        }
    }
    closedir(dir);
    if (rmdir(dirPath.c_str()) != 0) {
        cout << "Error deleting directory!" << endl;
    } else {
        cout << "Directory deleted successfully!" << endl;
    }
}

void renameFile(string oldFilePath, string newFilePath) {
    if (rename(oldFilePath.c_str(), newFilePath.c_str()) != 0) {
        cout << "Error renaming file!" << endl;
    } else {
        cout << "File renamed successfully!" << endl;
    }
}

void renameDirectory(string oldDirPath, string newDirPath) {
    if (rename(oldDirPath.c_str(), newDirPath.c_str()) != 0) {
        cout << "Error renaming directory!" << endl;
    } else {
        cout << "Directory renamed successfully!" << endl;
    }
}

void moveFile(string oldFilePath, string newFilePath) {
    if (rename(oldFilePath.c_str(), newFilePath.c_str()) != 0) {
        cout << "Error moving file!" << endl;
    } else {
        cout << "File moved successfully!" << endl;
    }
}

void moveDirectory(string oldDirPath, string newDirPath) {
    if (rename(oldDirPath.c_str(), newDirPath.c_str()) != 0) {
        cout << "Error moving directory!" << endl;
    } else {
        cout << "Directory moved successfully!" << endl;
    }
}

void searchFiles(string dirPath, string fileName) {
    DIR* dir = opendir(dirPath.c_str());
    struct dirent* entry;
    while ((entry = readdir(dir)) != NULL) {
        string name = entry->d_name;
        if (name.find(fileName) != string::npos) {
            cout << dirPath << "/" << name << endl;
        }
        if (entry->d_type == DT_DIR && name != "." && name != "..") {
            string filePath = dirPath + "/" + name;
            searchFiles(filePath, fileName);
        }
    }
    closedir(dir);
}

void viewFileInfo(string filePath) {
    struct stat s;
    if (stat(filePath.c_str(), &s) == 0) {
        cout << "File size: " << s.st_size << " bytes" << endl;
        cout << "Last modified time: " << ctime(&s.st_mtime);
    } else {
        cout << "Error getting file info!" << endl;
    }
}

void viewDirInfo(string dirPath) {
    DIR* dir = opendir(dirPath.c_str());
    struct dirent* entry;
    int fileCount = 0;
    int dirCount = 0;
    while ((entry = readdir(dir)) != NULL) {
        if (entry->d_type == DT_DIR) {
            dirCount++;
        } else {
            fileCount++;
        }
    }
    closedir(dir);
    cout << "File count: " << fileCount << endl;
    cout << "Directory count: " << dirCount << endl;
}

int main() {
    int choice;
    string filePath, dirPath, oldFilePath, newFilePath, fileName;
    while (true) {
        cout << "1. Create file" << endl;
        cout << "2. Copy file" << endl;
        cout << "3. Delete file" << endl;
        cout << "4. Create directory" << endl;
        cout << "5. Copy directory" << endl;
        cout << "6. Delete directory" << endl;
        cout << "7. Rename file" << endl;
        cout << "8. Rename directory" << endl;
        cout << "9. Move file" << endl;
        cout << "10. Move directory" << endl;
        cout << "11. Search files" << endl;
        cout << "12. View file info" << endl;
        cout << "13. View directory info" << endl;
        cout << "14. Exit" << endl;
        cout << "Enter your choice: ";
        cin >> choice;
        switch (choice) {
            case 1:
                cout << "Enter file path: ";
                cin >> filePath;
                createFile(filePath);
                break;
            case 2:
                cout << "Enter source file path: ";
                cin >> filePath;
                cout << "Enter destination file path: ";
                cin >> dirPath;
                copyFile(filePath, dirPath);
                break;
            case 3:
                cout << "Enter file path: ";
                cin >> filePath;
                deleteFile(filePath);
                break;
            case 4:
                cout << "Enter directory path: ";
                cin >> dirPath;
                createDirectory(dirPath);
                break;
            case 5:
                cout << "Enter source directory path: ";
                cin >> dirPath;
                cout << "Enter destination directory path: ";
                cin >> filePath;
                copyDirectory(dirPath, filePath);
                break;
            case 6:
                cout << "Enter directory path: ";
                cin >> dirPath;
                deleteDirectory(dirPath);
                break;
            case 7:
                cout << "Enter old file path: ";
                cin >> oldFilePath;
                cout << "Enter new file path: ";
                cin >> newFilePath;
                renameFile(oldFilePath, newFilePath);
                break;
            case 8:
                cout << "Enter old directory path: ";
                cin >> oldFilePath;
                cout << "Enter new directory path: ";
                cin >> newFilePath;
                renameDirectory(oldFilePath, newFilePath);
                break;
            case 9:
                cout << "Enter old file path: ";
                cin >> oldFilePath;
                cout << "Enter new file path: ";
                cin >> newFilePath;
                moveFile(oldFilePath, newFilePath);
                break;
            case 10:
                cout << "Enter old directory path: ";
                cin >> oldFilePath;
                cout << "Enter new directory path: ";
                cin >> newFilePath;
                moveDirectory(oldFilePath, newFilePath);
                break;
            case 11:
                cout << "Enter directory path: ";
                cin >> dirPath;
                cout << "Enter file name: ";
                cin >> fileName;
                searchFiles(dirPath, fileName);
                break;
            case 12:
                cout << "Enter file path: ";
                cin >> filePath;
                viewFileInfo(filePath);
                break;
            case 13:
                cout << "Enter directory path: ";
                cin >> dirPath;
                viewDirInfo(dirPath);
                break;
            case 14:
                exit(0);
            default:
                cout << "Invalid choice!" << endl;
                break;
        }
    }
    return 0;
}

注意：这只是一个简单的示例代码，可能还需要更多的错误处理和安全性检查。