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我理解的是任意返回类型

对于键盘不能输入#，还有键位不对的情况，多是设置键盘类型时没有设置正确，我们平时用的比较多的就是美式键盘，而树莓派默认是英式键盘，如何设置，且听我细细道来。

到手玩了几天，差不多熟悉了，不过想想用什么写程序呢？记事本？打死我也不干了，现在看到记事本还恶心呢，稍微靠谱点的一个是安卓，一个就是QT4了，安卓到目前为止还没有可用的镜像，那就只有QT4了，还等什么，开始干吧。

参考此链接http://qt-project.org/wiki/apt-get_Qt4_on_the_Raspberry_Pi

Using the Raspbian image

apt-get

Firstly I got the development tools needed by Qt Creator in the hope it would be less heavy for the Pi to download separately.

1. sudo apt-get install qt4-dev-tools

Then I went for Qt Creator

1. sudo apt-get install Qtcreator

I also installed

1. sudo apt-get install gcc
2. sudo apt-get install xterm
3. sudo apt-get install git-core

4. sudo apt-get install subversion

   

this gives as a result Qt Creator 2.5 with Qt 4.8.1 32 bit

Problem : no toolchain.

We can only compile for remote embedded devices and this is not the case here, because we are on the Pi and not remotely accessing it.

添加工具链

I added a gcc toolchain

tools>Options > build & run > tab tool chain > button add
Choose GCC

• Then set compiler path : /usr/bin/arm-linux-gnueabihf-gcc-4.6
• Debugger : /usr/bin/gdb
• Mkspec : default

Qt Creator seems to detect that we are going to deploy on a remote target.

To fix this :

• Go to menu help > about plugins
• Uncheck device support > remote linux
• Restart Qt Creator
• Go to tools > options TAB > build & run > Qt versions > add “/usr/bin/qmake-qt4”

It will then show up as a desktop project in the project wizard instead of embedded.

如果出现e: unable to locate package qt creator或E:者未发现软件包qt creator，请尝试sudo apt-get update 和 sudo apt-get upgrade

如果还是有问题,尝试sudo apt-get install qtcreator（小写，因为Linux里面大小写是严格区分的）

只要敢想就行了，没有什么是做不到的

实现在命令行下面读写GPIO，正在进行用QT读写的尝试，稍晚些时候补充整个过程，敬请关注！

不公平，凭什么你们都在我前面

bui，顶一下，没别的意思

下一次更新是zigbee扩展模块，正在搞，目前没有可更新的内容，树莓派一期工程完了