Qt實現截圖的源碼

本人最近業務 的需求，需要寫一個截圖軟件，使用C++ Qt實現，經過查詢和知識的積累，才做出來
最終實現效果如圖

源代碼如下

#include "widget.h" #include "ui_widget.h"#include <QDebug> #include <QScreen> #include <QMessageBox> #include <QDateTime> #include <QDir> #include <QDesktopWidget> #include <QBuffer> #include <QFile> #include <QCoreApplication> #include <QString> #include <QTime>Widget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget) {ui->setupUi(this);this->setWindowIcon(QPixmap(":/images/internet-web-browser.png"));this->setAutoFillBackground(true);this->setWindowTitle("Photo Station 20200807");ui->tabWidget->setCurrentIndex(2);ui->tabWidget->setFixedHeight(300);this->setWindowFlags(this->windowFlags() | Qt::WindowStaysOnTopHint);connect(ui->lineEditP12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonP12_clicked()));connect(ui->lineEditQ12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonQ12_clicked()));connect(ui->lineEditR12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonR12_clicked()));connect(ui->lineEditH12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonH12_clicked()));connect(ui->lineEditI12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonI12_clicked()));connect(ui->lineEditI22,SIGNAL(returnPressed()),this,SLOT(on_pushButtonI22_clicked()));connect(ui->lineEditK12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonK12_clicked()));connect(ui->lineEditJ12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonJ12_clicked()));connect(ui->lineEditL12,SIGNAL(returnPressed()),this,SLOT(on_pushButtonL12_clicked()));connect(ui->lineEditL22,SIGNAL(returnPressed()),this,SLOT(on_pushButtonL22_clicked()));connect(ui->lineEditK22,SIGNAL(returnPressed()),this,SLOT(on_pushButtonK22_clicked()));}Widget::~Widget() {delete ui; } void Widget::on_tabWidget_tabBarClicked(int index) {if(index ==0){ui->tabWidget->setFixedHeight(140);this->resize(230,160);}if(index ==1){ui->tabWidget->setFixedHeight(280);this->resize(230,300);}if(index ==2){ui->tabWidget->setFixedHeight(280);this->resize(230,300);} }void Widget::on_pushButtonP12_clicked() {QString strPone = ui->lineEditP12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\P12\\%1").arg(datePath);QString childDir = ui->lineEditPChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\P12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\P12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditP12->setText("");}else{filePathName = QString("C:\\P12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditP12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\P12\\%1").arg(datePath);QString childDir = ui->lineEditPChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\P12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\P12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditP12->setText("");}else{filePathName = QString("C:\\P12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditP12->setText("");}} }void Widget::on_pushButtonQ12_clicked() {QString strPone = ui->lineEditQ12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\Q12\\%1").arg(datePath);QString childDir = ui->lineEditQChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\Q12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\Q12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditQ12->setText("");}else{filePathName = QString("C:\\Q12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditQ12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\Q12\\%1").arg(datePath);QString childDir = ui->lineEditQChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\Q12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\Q12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditQ12->setText("");}else{filePathName = QString("C:\\Q12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditQ12->setText("");}}}void Widget::on_pushButtonR12_clicked() {QString strPone = ui->lineEditR12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\R12\\%1").arg(datePath);QString childDir = ui->lineEditRChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\R12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\R12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditR12->setText("");}else{filePathName = QString("C:\\R12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditR12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\R12\\%1").arg(datePath);QString childDir = ui->lineEditRChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\R12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\R12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditR12->setText("");}else{filePathName = QString("C:\\R12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditR12->setText("");}}}void Widget::on_pushButtonH12_clicked() {QString strPone = ui->lineEditH12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\H12\\%1").arg(datePath);QString childDir = ui->lineEditHChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\H12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\H12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditH12->setText("");}else{filePathName = QString("C:\\H12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditH12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\H12\\%1").arg(datePath);QString childDir = ui->lineEditHChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\H12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\H12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditH12->setText("");}else{filePathName = QString("C:\\H12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditH12->setText("");}} }void Widget::on_pushButtonI12_clicked() {QString strPone = ui->lineEditI12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\I12\\%1").arg(datePath);QString childDir = ui->lineEditIChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\I12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\I12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI12->setText("");}else{filePathName = QString("C:\\I12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\I12\\%1").arg(datePath);QString childDir = ui->lineEditIChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\I12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\I12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI12->setText("");}else{filePathName = QString("C:\\I12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI12->setText("");}} }void Widget::on_pushButtonI22_clicked() {QString strPone = ui->lineEditI22->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\I22\\%1").arg(datePath);QString childDir = ui->lineEditIChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\I22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\I22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI22->setText("");}else{filePathName = QString("C:\\I22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI22->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\I22\\%1").arg(datePath);QString childDir = ui->lineEditIChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\I22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\I22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI22->setText("");}else{filePathName = QString("C:\\I22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditI22->setText("");}} }void Widget::on_pushButtonJ12_clicked() {QString strPone = ui->lineEditJ12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\J12\\%1").arg(datePath);QString childDir = ui->lineEditJChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\J12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\J12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditJ12->setText("");}else{filePathName = QString("C:\\J12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditJ12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\J12\\%1").arg(datePath);QString childDir = ui->lineEditJChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\J12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\J12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditJ12->setText("");}else{filePathName = QString("C:\\J12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditJ12->setText("");}} }void Widget::on_pushButtonK12_clicked() {QString strPone = ui->lineEditK12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\K12\\%1").arg(datePath);QString childDir = ui->lineEditKChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\K12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\K12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK12->setText("");}else{filePathName = QString("C:\\K12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\K12\\%1").arg(datePath);QString childDir = ui->lineEditKChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\K12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\K12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK12->setText("");}else{filePathName = QString("C:\\K12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK12->setText("");}} }void Widget::on_pushButtonK22_clicked() {QString strPone = ui->lineEditK22->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\K22\\%1").arg(datePath);QString childDir = ui->lineEditKChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\K22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\K22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK22->setText("");}else{filePathName = QString("C:\\K22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK22->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\K22\\%1").arg(datePath);QString childDir = ui->lineEditKChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\K22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\K22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK22->setText("");}else{filePathName = QString("C:\\K22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditK22->setText("");}} }void Widget::on_pushButtonL12_clicked() {QString strPone = ui->lineEditL12->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\L12\\%1").arg(datePath);QString childDir = ui->lineEditLChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\L12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\L12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL12->setText("");}else{filePathName = QString("C:\\L12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL12->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\L12\\%1").arg(datePath);QString childDir = ui->lineEditLChilder12->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\L12\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\L12\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL12->setText("");}else{filePathName = QString("C:\\L12\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL12->setText("");}} }void Widget::on_pushButtonL22_clicked() {QString strPone = ui->lineEditL22->text().toUtf8();if(strPone.isEmpty()){QMessageBox::warning(this,"error","錯誤，必須輸入SN");return;}QString pathTime = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");QString pathTime2 = QDateTime::currentDateTime().toString("yyyy-MM-dd");QString paths= QString("%1 20:00:00").arg(pathTime2);QDateTime nowTime = QDateTime::fromString(pathTime,"yyyy-MM-dd HH:mm:ss");QDateTime fixedTime = QDateTime::fromString(paths,"yyyy-MM-dd HH:mm:ss");uint nowTime_s = nowTime.toTime_t();uint fixedTime_s = fixedTime.toTime_t();int c = fixedTime_s -nowTime_s;QScreen *screen = QGuiApplication::primaryScreen();if(c>0){QString datePath = QDateTime::currentDateTime().toString("MMdd");QString path = QString("C:\\L22\\%1").arg(datePath);QString childDir = ui->lineEditLChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\L22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\L22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL22->setText("");}else{filePathName = QString("C:\\L22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL22->setText("");}}if(c<0){//創建第二天的文件夾,并存放相應的文件QString datePath = QDateTime::currentDateTime().addDays(+1).toString("MMdd");QString path = QString("C:\\L22\\%1").arg(datePath);QString childDir = ui->lineEditLChilder22->text().toUtf8();if(!childDir.isEmpty()){path = QString("C:\\L22\\%1\\%2").arg(datePath).arg(childDir);}QDir dir(path);if(!dir.exists()){dir.mkdir(path);}QString filePathName=NULL;if(!childDir.isEmpty()){filePathName = QString("C:\\L22\\%1\\%2\\%3___").arg(datePath).arg(childDir).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL22->setText("");}else{filePathName = QString("C:\\L22\\%1\\%2___").arg(datePath).arg(strPone);filePathName +=QDateTime::currentDateTime().toString("zzzz");filePathName+=".jpg";screen->grabWindow(0).save(filePathName,"jpg");ui->lineEditL22->setText("");}} }

widget.h 頭文件的包含的代碼是

#ifndef WIDGET_H #define WIDGET_H#include <QWidget>namespace Ui { class Widget; }class Widget : public QWidget {Q_OBJECTpublic:explicit Widget(QWidget *parent = 0);~Widget();private slots:void on_tabWidget_tabBarClicked(int index);void on_pushButtonP12_clicked();void on_pushButtonQ12_clicked();void on_pushButtonR12_clicked();void on_pushButtonH12_clicked();void on_pushButtonI12_clicked();void on_pushButtonI22_clicked();void on_pushButtonJ12_clicked();void on_pushButtonK12_clicked();void on_pushButtonK22_clicked();void on_pushButtonL12_clicked();void on_pushButtonL22_clicked();private:Ui::Widget *ui; };#endif // WIDGET_H

代碼寫的有的冗余，其實可以精簡代碼，把中間相同部份抽離出來一個公共函數，通過傳參數，直接調用函數，能夠節省到只有200行代碼左右，有興趣的朋友可以自己抽離出一個公共方法或者函數。頭文件先定義一下，cpp文件實現一下。

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