Qt打印数据库中的表格
实现方法
连接数据库，用QTableModel显示数据库的表格，然后将表格转为html，然后再进行打印，打印的方法是参考以下链接完成的：
Qt中（HTML）实现数据表格打印功能
输出
主界面
打印结果
代码
PrintTest.pro
QT += core gui sql printsupport
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
CONFIG += c++11
# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
main.cpp \
qprintermanager.cpp \
widget.cpp
HEADERS += \
qprintermanager.h \
widget.h
FORMS += \
widget.ui
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
qprintermanager.h
#ifndef QPRINTERMANAGER_H
#define QPRINTERMANAGER_H
#include