文件管理系统（关于QT的一些使用方法）

这个很早我就想写了，一直拖啊拖，这篇博客是为了保留QT的一些使用方法，以免以后在使用QT的时候没有参照的代码

先贴一份QT的文件结构

然后大概解释一下 allhead代表所有的头文件，creat_d好像创建文件夹，_f应该是文件（反正一个文件夹一个文件），然后就是打开文件夹啊，打开文件，写入文件，返回上一级这些操作。

（Ps：可能有些文件被我修改以后变的没有意义了，由于时间太长，我也记不清楚用了多少，但是test开头的肯定是用于测试一些方法的）

这里是头文件

allhead.h

#ifndef ALLHEAD_H
#define ALLHEAD_H


#include<QString>
#include<QMessageBox>
#include <stdio.h>
#include <QVector>
extern QString noww;
extern int pridee;
extern int flag;
struct File
{
    QString name;
    char kind;
    int pride;
    int id;
    int fa;
    QString file;
};
extern File q;
extern int sz,nowh;
extern QVector<File> v;
extern QVector<int>mp[1005];
extern QVector<File>op;


#endif // ALLHEAD_H

View Code

closefile.h

#ifndef CLOSEFILE_H
#define CLOSEFILE_H
#define QT4_SUPPORT
#include <QWidget>
#include<testfunction.h>
#include<qdebug.h>
#include "allhead.h"
namespace Ui {
class closefile;
}

class closefile : public QWidget
{
    Q_OBJECT

public:
    explicit closefile(QWidget *parent = 0);
    ~closefile();
    QString name;
private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_pushButton_clicked();

private:
    Ui::closefile *ui;
};

#endif // CLOSEFILE_H

View Code

creat_d.h

#ifndef CREAT_D_H
#define CREAT_D_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class creat_d;
}

class creat_d : public QWidget
{
    Q_OBJECT

public:
    explicit creat_d(QWidget *parent = 0);
    ~creat_d();

private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_lineEdit_2_cursorPositionChanged();

    void on_pushButton_clicked();

private:
    Ui::creat_d *ui;
};

#endif // CREAT_D_H

View Code

creat_f.h

#ifndef CREAT_F_H
#define CREAT_F_H
#include<QObject>
#include <QWidget>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"

struct node
{
    QString name;
    int pride;
};
namespace Ui {
class creat_f;
}

class creat_f : public QWidget
{
    Q_OBJECT

public:
    explicit creat_f(QWidget *parent = 0);
    ~creat_f();
    QString name;
    int pride;
private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_lineEdit_2_cursorPositionChanged();

    void on_ppp_clicked();

private:
    Ui::creat_f *ui;
};

#endif // CREAT_F_H

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del.h

#ifndef DEL_H
#define DEL_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class del;
}

class del : public QWidget
{
    Q_OBJECT

public:
    explicit del(QWidget *parent = 0);
    ~del();
    QString name;

private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_pushButton_clicked();

private:
    Ui::del *ui;
};

#endif // DEL_H

View Code

intopath.h

#ifndef INTOPATH_H
#define INTOPATH_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class intopath;
}

class intopath : public QWidget
{
    Q_OBJECT

public:
    explicit intopath(QWidget *parent = 0);
    ~intopath();
    QString name;

private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_nnn_clicked();

private:
    Ui::intopath *ui;
};

#endif // INTOPATH_H

View Code

isfile.h

#ifndef ISFILE_H
#define ISFILE_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class Isfile;
}

class Isfile : public QWidget
{
    Q_OBJECT

public:
    explicit Isfile(QWidget *parent = 0);
    ~Isfile();

private:
    Ui::Isfile *ui;
};

#endif // ISFILE_H

View Code

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include<QObject>
#include <QMainWindow>
#include "creat_f.h"
#include "intopath.h"
#include "del.h"
#include <QVector>
#include <QString>
#include "openfile.h"
#include "closefile.h"
#include "rfile.h"
#include "wfile.h"
#include "wwfile.h"
#include "allhead.h"
#include <stdio.h>
#include "creat_d.h"
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

    creat_f *z;
    creat_d *d;
    intopath *path;
    del *DEL;
    openfile *open;
    closefile *close;
    rfile *rf;
    wfile *wf;
    wwfile *wwf;
private slots:
    void on_creat_clicked();

    void on_creat_ff_clicked();

    void on_pushButton_clicked();

    void on_index_clicked();

    void on_Back_clicked();

    void on_Del_clicked();

    void on_openfile_clicked();

    void on_closefile_clicked();

    void on_rfile_clicked();

    void on_wfile_clicked();

    void on_index_s_clicked();

private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

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openfile.h

#ifndef OPENFILE_H
#define OPENFILE_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class openfile;
}

class openfile : public QWidget
{
    Q_OBJECT

public:
    explicit openfile(QWidget *parent = 0);
    ~openfile();
    QString name;
private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_pushButton_clicked();

private:
    Ui::openfile *ui;
};

#endif // OPENFILE_H

View Code

rfile.h

#ifndef RFILE_H
#define RFILE_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class rfile;
}

class rfile : public QWidget
{
    Q_OBJECT

public:
    explicit rfile(QWidget *parent = 0);
    ~rfile();
    QString name;
private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_pushButton_clicked();

private:
    Ui::rfile *ui;
};

#endif // RFILE_H

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wfile.h

#ifndef WFILE_H
#define WFILE_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class wfile;
}

class wfile : public QWidget
{
    Q_OBJECT

public:
    explicit wfile(QWidget *parent = 0);
    ~wfile();
    QString name;
private slots:
    void on_lineEdit_cursorPositionChanged();

    void on_pushButton_clicked();

    void on_textEdit_destroyed();

private:
    Ui::wfile *ui;
};

#endif // WFILE_H

View Code

wwfile.h

#ifndef WWFILE_H
#define WWFILE_H

#include <QWidget>
#include<QObject>
#include <QVector>
#include <QString>
#include <QApplication>
#include "allhead.h"
namespace Ui {
class wwfile;
}

class wwfile : public QWidget
{
    Q_OBJECT

public:
    explicit wwfile(QWidget *parent = 0);
    ~wwfile();
    QString name;
private slots:
    void on_pushButton_clicked();

    void on_textEdit_destroyed();

private:
    Ui::wwfile *ui;
};

#endif // WWFILE_H

View Code

下面时候Sources

allhead.cpp

#include<iostream>
#include <stdio.h>
#include<allhead.h>
QString noww;
int pridee;
int flag;
File q;
int sz,nowh;
QVector<File> v;
QVector<int>mp[1005];
QVector<File>op;

View Code

closefile.cpp

#include "closefile.h"
#include "ui_closefile.h"

closefile::closefile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::closefile)
{
    ui->setupUi(this);
}

closefile::~closefile()
{
    delete ui;
}

void closefile::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void closefile::on_pushButton_clicked()
{
   bool ok=true;
   for(int i=0;i<op.size();i++){
       if(op[i].name==noww&&op[i].fa==nowh){
           ok=false;break;
       }
   }
   QString tmp="";
   qDebug()<<"asd "<<ok<<endl;
   if(ok){
       QMessageBox::about(this,"关闭文件","该文件未打开");
       this->close();
       return ;
   }
   QVector<File>::iterator it;
   for(it=op.begin();it!=op.end();it++){
       if(it->name==noww&&it->fa==nowh){
           op.erase(it);
           break;
       }
   }
   QMessageBox::about(this,"关闭文件","文件已关闭");
   this->close();
   return ;
}

View Code

creat_d.cpp

#include "creat_d.h"
#include "ui_creat_d.h"
#include <qDebug>
creat_d::creat_d(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::creat_d)
{
    ui->setupUi(this);
}

creat_d::~creat_d()
{
    delete ui;
}

void creat_d::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void creat_d::on_lineEdit_2_cursorPositionChanged()
{

}

void creat_d::on_pushButton_clicked()
{
    bool ok=true;
    for(int i=0;i<mp[nowh].size();i++){
        int as=mp[nowh][i];
        for(int j=0;j<v.size();j++){
            if(v[j].name==noww&&v[j].id==as){
                ok=false;
                break;
            }
        }
        if(!ok)break;
    }
    QString tmp="";
    if(!ok){
        QMessageBox::about(this,"新建文件","此文件或者目录已经存在");
        this->close();
        return ;
    }

    q.name=noww;
    pridee=ui->lineEdit_2->text().toInt();
    q.id=++sz;
    q.kind='f';
    q.pride=pridee;
    qDebug()<<"sss "<<pridee<<endl;
    q.fa=nowh;
    mp[nowh].push_back(q.id);
    v.push_back(q);
    QMessageBox::about(this,"新建文件","创建成功");
    this->close();
}

View Code

creat_f.cpp

#include "creat_f.h"
#include "ui_creat_f.h"
#include"mainwindow.h"
#include <qDebug>
#include "allhead.h"
#include <QString>

creat_f::creat_f(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::creat_f)
{
    ui->setupUi(this);
}

creat_f::~creat_f()
{
    delete ui;
}

void creat_f::on_lineEdit_cursorPositionChanged()
{

    noww=ui->lineEdit->text();
}

void creat_f::on_lineEdit_2_cursorPositionChanged()
{

}

void creat_f::on_ppp_clicked()
{
    bool ok=true;
    for(int i=0;i<mp[nowh].size();i++){
        int as=mp[nowh][i];
        for(int j=0;j<v.size();j++){
            if(v[j].name==noww&&v[j].id==as){
                ok=false;
                break;
            }
        }
        if(!ok)break;
    }
    QString tmp="";
    if(!ok){
        QMessageBox::about(this,"新建文件夹","此文件或者目录已经存在");
        this->close();
        return ;
    }
    q.name=noww;
    pridee=ui->lineEdit_2->text().toInt();
    q.id=++sz;
    q.kind='d';
    q.pride=pridee;
    q.fa=nowh;
    mp[nowh].push_back(q.id);
    v.push_back(q);
    QMessageBox::about(this,"新建文件夹","创建成功");
    this->close();
}

View Code

del.cpp

#include "del.h"
#include "ui_del.h"

del::del(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::del)
{
    ui->setupUi(this);
}

del::~del()
{
    delete ui;
}

void del::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void dfs(int x)
{
    for(int i=0;i<mp[x].size();i++){
        int as=mp[x][i];
        int k=-1;
        for(int j=0;j<v.size();j++){
            if(v[j].id==as&&v[j].kind=='d'){
                k=as;
                break;
            }
        }
        if(k!=-1)dfs(k);
    }
    mp[x].clear();
}
void del::on_pushButton_clicked()
{
    int k=-1;
    for(int i=0;i<v.size();i++){
        if(v[i].name==noww&&v[i].fa==nowh){
            k=v[i].id;break;
        }
    }
    QString tmp="";
    if(k==-1){
        QMessageBox::about(this,"删除文件","没有此文件");
        this->close();
        return ;
    }
    dfs(k);
    QVector<int>::iterator it;
    for(it=mp[nowh].begin();it!=mp[nowh].end();it++){
        int as=*it;
        bool ok=true;
        for(int j=0;j<v.size();j++){
            if(v[j].id==as&&v[j].name==noww){
                ok=false;
                break;
            }
        }
        if(!ok){
            mp[nowh].erase(it);
            return ;
        }
    }
    QMessageBox::about(this,"删除文件","删除完毕");
    this->close();
}

View Code

intopath.cpp

#include "intopath.h"
#include "ui_intopath.h"

intopath::intopath(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::intopath)
{
    ui->setupUi(this);
}

intopath::~intopath()
{
    delete ui;
}

void intopath::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void intopath::on_nnn_clicked()
{
    bool ok=true;
    int k;
    for(int i=0;i<mp[nowh].size();i++){
        int as=mp[nowh][i];
        for(int j=0;j<v.size();j++){
            if(v[j].name==noww&&v[j].id==as){
                ok=false;k=as;break;
            }
        }
        if(!ok)break;
    }
    QString tmp="";
    if(ok){
        QMessageBox::about(this,"打开文件夹","路径输入错误，请核对");
        this->close();
    }
    else{
        nowh=k;
        QMessageBox::about(this,"打开文件夹","以打开");
        this->close();
    }
}

View Code

isfile.cpp

#include "isfile.h"
#include "ui_isfile.h"

Isfile::Isfile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Isfile)
{
    ui->setupUi(this);
}

Isfile::~Isfile()
{
    delete ui;
}

View Code

main.cpp

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

View Code

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "creat_f.h"
#include "intopath.h"
#include "del.h"
#include "openfile.h"
#include "closefile.h"
#include "rfile.h"
#include "wfile.h"
#include "wwfile.h"
#include "iostream"
#include <QDebug>
#include "allhead.h"
using namespace std;


MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    sz=0;nowh=0;
    v.clear();
    op.clear();
    for(int i=0;i<1005;i++)mp[i].clear();
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_creat_clicked()
{
    z = new creat_f;
    z->setWindowTitle(tr("新建文件夹"));
    z->show();
}

void MainWindow::on_creat_ff_clicked()
{
    d = new creat_d;
    d->setWindowTitle(tr("新建文件"));
    d->show();
}

void MainWindow::on_pushButton_clicked()
{
    path=new intopath;
    path->setWindowTitle(tr("打开文件夹"));
    path->show();
}

void MainWindow::on_index_clicked()
{
    QString tmp="";
    tmp+="Name	Pride	Kind	Parent
";
    for(int i=0;i<mp[nowh].size();i++){
        int as=mp[nowh][i];
        for(int j=0;j<v.size();j++){
            if(v[j].id==as){
                tmp+=v[j].name;tmp+="	";
                tmp+=QString::number(v[j].pride);tmp+="	";
                tmp+=v[j].kind;tmp+="	";
                tmp+=QString::number(v[j].fa);tmp+="
";
                break;
            }
        }
    }
    ui->com->setText(tmp);
}

void MainWindow::on_Back_clicked()
{
    QString ans="";
    if(nowh==0){
        ans+="Error:当前已为用户根目录,无法再回退
";
        ui->com->setText(ans);
        return ;
    }
    int k;
    for(int i=0;i<v.size();i++){
        if(v[i].id==nowh){
            k=v[i].fa;break;
        }
    }
    nowh=k;
    ans+="返回完成";
    ui->com->setText(ans);
}


void MainWindow::on_Del_clicked()
{
    DEL=new del;
    DEL->setWindowTitle(tr("删除文件"));
    DEL->show();
}

void MainWindow::on_openfile_clicked()
{
    open=new openfile;
    open->setWindowTitle(tr("打开文件"));
    open->show();
}

void MainWindow::on_closefile_clicked()
{
    close=new closefile;
    close->setWindowTitle(tr("关闭文件"));
    close->show();
}

void MainWindow::on_rfile_clicked()
{
    rf=new rfile;
    rf->setWindowTitle(tr("读文件"));
    rf->show();
}

void MainWindow::on_wfile_clicked()
{
    wf=new wfile;
    wf->setWindowTitle(tr("写文件"));
    wf->show();
}

void MainWindow::on_index_s_clicked()
{

    QString ans="";
    int cnt=0;
    QVector<File> xx;
    xx.clear();
    for(int i=0;i<v.size();i++){

        xx.push_back(v[i]);
    }
//    printf("文件名    索引号
");
    ans+="文件名	索引号
";
    for(int i=0;i<xx.size();i++){
//        cout<<index[i].first.name;
//        printf("                     %d
",index[i].second);
        ans+=xx[i].name;ans+='	';
        ans+=QString::number(i+1);
        ans+='
';
    }
    ui->com->setText(ans);
}

View Code

openfile.cpp

#include "openfile.h"
#include "ui_openfile.h"

openfile::openfile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::openfile)
{
    ui->setupUi(this);
}

openfile::~openfile()
{
    delete ui;
}

void openfile::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void openfile::on_pushButton_clicked()
{
    int ok=true;
    for(int i=0;i<op.size();i++){
        if(op[i].name==noww&&op[i].id==nowh){
            ok=false;
            return ;
        }
    }
    QString tmp="";
    if(!ok){
        QMessageBox::about(this,"打开文件","该文件已被打开");
        this->close();
        return ;
    }
    int k=-1;
    for(int i=0;i<v.size();i++){
        if(v[i].name==noww&&v[i].fa==nowh){
            k=v[i].id;
            op.push_back(v[i]);
            break;
        }
    }
    if(k==-1){
        QMessageBox::about(this,"打开文件","没有此文件");
        this->close();
    }
    else{
        QMessageBox::about(this,"打开文件","文件打开");
        this->close();
    }
}

View Code

rfile.cpp

#include "rfile.h"
#include "ui_rfile.h"

rfile::rfile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::rfile)
{
    ui->setupUi(this);
}

rfile::~rfile()
{
    delete ui;
}

void rfile::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void rfile::on_pushButton_clicked()
{
    bool ok=true;
    int s;
    for(int i=0;i<op.size();i++){
        if(op[i].name==noww&&op[i].fa==nowh){
            ok=false;s=op[i].pride;break;
        }
    }
    QString tmp="";
    if(ok){
//        tmp+="该文件尚未打开";
//        ui->com->setText(tmp);
        QMessageBox::about(this,"读文件","该文件尚未打开");
        this->close();
        return;
    }
    int k;
    for(int i=0;i<v.size();i++){
        if(v[i].name==noww&&v[i].fa==nowh){
            k=i;
            break;
        }
    }
//    ui->com->setText(v[k].file);
    QMessageBox::about(this,v[k].name,v[k].file);
    this->close();
}

View Code

wfile.cpp

#include "wfile.h"
#include "ui_wfile.h"
#include <qDebug>
wfile::wfile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::wfile)
{
    ui->setupUi(this);
}

wfile::~wfile()
{
    delete ui;
}

void wfile::on_lineEdit_cursorPositionChanged()
{
    noww=ui->lineEdit->text();
}

void wfile::on_pushButton_clicked()
{
    bool ok=true;
    int s;
    for(int i=0;i<op.size();i++){
        if(op[i].name==noww&&op[i].fa==nowh){
            ok=false;s=op[i].pride;break;
        }
    }
    if(ok){
        QMessageBox::about(this,"写文件","该文件未被打开");
        this->close();
        return;
    }
    QString la;
    la=ui->textEdit->toPlainText();
//    qDebug()<<"qwe "<<noww<<endl;
    int k;
//    int zzz=1;
    for(int i=0;i<v.size();i++){
        if(v[i].name==noww&&v[i].fa==nowh){
            k=i;
            break;
        }
    }
    qDebug()<<"aaa "<<s<<endl;
    if(s==0){
        QMessageBox::about(this,"写文件","文件没有写权限");
        this->close();
        return ;
    }
    for(int i=0;i<v.size();i++){
        if(v[i].name==noww&&v[i].fa==nowh){
            v[i].file+=la;
        }
    }
//    v[k].file+=noww;
    QMessageBox::about(this,"写文件","写入完成");
    this->close();
}

void wfile::on_textEdit_destroyed()
{

}

View Code

wwfile.cpp

#include "wwfile.h"
#include "ui_wwfile.h"

wwfile::wwfile(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::wwfile)
{
    ui->setupUi(this);
}

wwfile::~wwfile()
{
    delete ui;
}

void wwfile::on_pushButton_clicked()
{
//    int k;
//    for(int i=0;i<v.size();i++){
//        if(v[i].name==noww&&v[i].fa==nowh){
//            k=i;
//            break;
//        }
//    }
//    v[k].file+=noww;
//    QMessageBox::about(this,"写文件","写入完成");
//    this->close();
}

void wwfile::on_textEdit_destroyed()
{
//    noww=ui->textEdit->toPlainText();
}

View Code

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原文地址：https://www.cnblogs.com/lalalatianlalu/p/10114417.html

文件管理系统 （关于QT的一些使用方法）

文件管理系统（关于QT的一些使用方法）