QT series - Installation

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One 、QT Introduce

QT Is based on C++ Linguistic GUI application development framework .QT In addition to being able to develop GUI Program , You can also launch console tools and servers .
QT At present except C++ Language , And support python、ruby、Perl Other languages . As for the support system, let alone , Very much , image Windows、Linux、Unix、Android、iOS、 Embedded systems and other systems are supported .（ notes ： Here is just a list of what I know , Not all , There are many other systems that support ）

Two 、 Why is embedded system interface recommended QT Development ？

There's no other reason , Simply QT Cross platform Very strong .
Imagine developing a raspberry pie or GEC6818 After we finish writing the interface, we can verify it on the board , But something went wrong bug Well ？ If there are some hidden patterns bug Keep appearing ？ Of course, this can be modified and debugged on the board , But isn't it troublesome ... But if you use QT, We can use it directly in our common Windows Write directly in the environment 、 debugging , After debugging, run on the board through cross compilation . If it can be in “ On board debugging ” and “Windows Environment debugging ” Personally, I prefer to choose Windows Environmental Science ...
The above is one of the reasons , second The functions of the software part of a large-scale embedded project are often very complex, requiring multiple people in the team to carry out modular division of labor development , So at this time, do we need one debugging machine for each person ？ Obviously, this is unrealistic , But if it goes through QT We can do that Windows Write and debug in the environment , After personal debugging is correct, verify it on the board by special means . This undoubtedly saves costs and improves development efficiency to a great extent .

3、 ... and 、QT Installation tutorial

QT Official website ：https://download.qt.io/
If you choose the version I installed , You can also download it from my Alibaba cloud disk below ：https://www.aliyundrive.com/s/cgyA4c6Bcdm
After we enter the website , Enter into achive/qt You can see QT Each version of .

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Open the downloaded interface ：

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Here I recommend choosing all , Because many unnecessary troubles can be avoided in the later stage , What impresses me most is that I tried to add connections before MYSQL But there are always some folders that are not available in online tutorials , Finally, it took a long time to find out that it was a missed choice during installation ...
If you simply need to use QT Creator perhaps MSVC That is to use VS Words , You can also go online to find other tutorials , I choose all here , Because it can really avoid a lot of trouble .
First , I personally like to use QT Creator Design , But when facing some big projects VS It's still more fragrant , At least I personally feel that way , So I highly recommend choosing all , The first is to avoid some unnecessary troubles in the later stage ; Secondly, it can be used in some projects QT Creator Design , Choose to use in large projects VS, Make development more flexible .

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Finally, click Install to wait for installation .

Four 、QT The first interface of

Here first QT Creator Run the first interface , About VS yes QT The main content behind the series , So don't rush .
First let's open up QT Creator, Click on “ file ”, Select the first new .

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Mouse click “ debugging ” After suspended in “ Start debugging ” On , Click on “ Start mode ”, It's ready to run . The interface is as follows ：

Come here QT It has been successfully installed .

5、 ... and 、QT Design page

Here is mainly a piece of my own design interface , To show you QT Interface design ability , I'm only a beginner at this level , Some big guy level designs look better .