静态库的编译
#-------------------------------------------------
#
# Project created by QtCreator 2018-08-10T09:46:45
#
#-------------------------------------------------
QT -= gui
TARGET = buildlibtest
TEMPLATE = lib
CONFIG += staticlib
# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as 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 you use 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 += \
buildlibtest.cpp
HEADERS += \
buildlibtest.h
unix {
target.path = /usr/lib
INSTALLS += target
}
#ifndef BUILDLIBTEST_H
#define BUILDLIBTEST_H
class Buildlibtest
{
public:
Buildlibtest();
int add(int num1,int num2);
};
#endif
#include "buildlibtest.h"
Buildlibtest::Buildlibtest()
{
}
int Buildlibtest::add(int num1,int num2){
return (num1+num2);
}
静态库的使用
- 说明:我查询的博客对于静态库的使用都是一笔带过,但是对于我这各小白还是折腾了许久,下面就简要说明一下
- 将上面得到的.a静态库,和原来的.h头文件(共两个)放入新创建的文件夹中
- 新建项目,将静态库和头文件导入
- 按照上面博客将静态库导入文档时要注意不要“对为debug版本添加“d”作为后缀”和这个选项打勾(本人就是因为这一项打了勾,半天运行不了)
![这里写图片描述]()
- 测试代码
![这里写图片描述]()
#-------------------------------------------------
#
# Project created by QtCreator 2018-08-10T10:23:55
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = testlib
TEMPLATE = app
# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as 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 you use 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 \
mainwindow.cpp
HEADERS += \
mainwindow.h \
buildlibtest.h
win32: LIBS += -L$$PWD/./ -lbuildlibtest
INCLUDEPATH += $$PWD/.
DEPENDPATH += $$PWD/.
win32:!win32-g++: PRE_TARGETDEPS += $$PWD/./buildlibtest.lib
else:win32-g++: PRE_TARGETDEPS += $$PWD/./libbuildlibtest.a
}
#ifndef BUILDLIBTEST_H
#define BUILDLIBTEST_H
class Buildlibtest
{
public:
Buildlibtest();
int add(int num1,int num2);
};
#endif
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include "buildlibtest.h"
#include <QDebug>
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = 0);
~MainWindow();
};
#endif
#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
Buildlibtest obj;
qDebug()<<obj.add(1,5);
}
MainWindow::~MainWindow()
{
}