【求助】这是怎么回事？

蒟蒻

我的代码：
cleaner.hpp

[C++] 纯文本查看 复制代码

/*
* Copyright (C) 2023 JuRuoqwq
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <[url]https://www.gnu.org/licenses/>.[/url]
*/

#ifndef CLEANER_HPP
#define CLEANER_HPP

// C++标准库
#include <string>
#include <cstdlib>
#include <vector>
#include <fstream>
#include <iostream>

/*
* 清理的状态
*/

struct CleanStates {
    const int CLEAN_OK = 0;
    const int FILE_NOT_FOUND = -1;
    const int CAN_NOT_DEL_FILE = -2;
}states;


class Cleaner {
public:
    // 构造函数
    Cleaner();
    Cleaner(std::vector<std::string> fileNames);

    // 成员函数
    int DeleteObjectFile();

private:
    std::vector<std::string> fileNames;
};

#endif

cleaner.cpp：

[C++] 纯文本查看 复制代码

/*
* Copyright (C) 2023 JuRuoqwq
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <[url]https://www.gnu.org/licenses/>.[/url]
*/

#include "cleaner.hpp"

/*
* Cleaner的默认构造函数
*/

Cleaner::Cleaner() {
    (*this).fileNames = {};
}

/*
* 包含了要删除的文件的文件名的构造函数
*/

Cleaner::Cleaner(std::vector<std::string> fileNames) {
    (*this).fileNames = fileNames;
}

/*
* 删除对象文件(.o .obj)
*/

int Cleaner::DeleteObjectFile() {
    std::ifstream inFileStream; //读文件的文件流
    std::string delFileCommand;
    int result;
    for (auto fileName : fileNames) {
        inFileStream.open(fileName);
        if (inFileStream.is_open()) {
            // 文件存在，删除
#if _WIN32
            delFileCommand = "del /q" + (std::string)" " + fileName;
#else
            delFileCommand = "rm -rf" + (std::string)" " + fileName;
#endif
            int commandRunState = system(delFileCommand.c_str());
            if (result == -1) {
                result = states.CAN_NOT_DEL_FILE;
            }
        }else {
            result = states.FILE_NOT_FOUND;
        }
    }
    result = states.CLEAN_OK;
    return result;
}

// test
int main() {
    std::vector<std::string> fileNames = {"a.o","b.o","c.o"};
    Cleaner test(fileNames);
    test.DeleteObjectFile();
}

问题应该是出现在cleaner.cpp的line 49，执行CMD命令的地方
在fileNames（line 67）中，位于向量第一个字符串（在这里是"a.o"）在删除的时候会提示被占用，但是使用cmd可以删除，这有在这个程序里不行
而且我也尝试了一下，把a.o和b.o调换，结局是b.o无法被删除
这是为什么？

faryou

你是不是发错区了
帮你移动下~

蒟蒻

faryou 发表于 2023-9-15 22:20
你是不是发错区了
帮你移动下~

谢了
我原本以为是Windows的问题，后来发现不是