1.qt基础

qt的移植性非常强，一套代码不用我们改太多，直接通用所有平台。不久的将来，qt会被用到MCU上，学习QT还是非常有意义的。

2.做一个简单的QT界面

首先新建工程

注意这个不一样

工程文件分析：

#-------------------------------------------------
#
# Project created by QtCreator 2023-07-09T17:06:41
#
#-------------------------------------------------

QT       += core gui  #往qt工程里面加入core gui 模块

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets #加入qt库的版本大于4，就加入一个widgets模块

TARGET = class1 # 生成APP的名字
TEMPLATE = app  # 编译产物的类型

# 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 #定义的一个宏

# 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 += \           #指定工程里面都有哪些cpp
        main.cpp \
        widget.cpp

HEADERS += \
        widget.h     #指定工程里面都有那些头文件

FORMS += \
        widget.ui   #指定工程里面都有哪些ui文件

点击forms，然后双击ui文件，就可以进入ui编辑器。

ui编辑器面板介绍