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error: ISO C++ forbids declaration of 'XXXX' with no type - C/C++ - 清泛IT论坛，有思想、有深度
..."
class ConfigDialog {
MainWindow *mainWindow;
};
解决方法：在声明对象的类名称前追加关键字“class”，即修改如下：
mainwindow.cpp
#include "configdialog.h"
class MainWindow {
class ConfigDialog *configDialog;
};
confi...
libunwind链接时报错：undefined reference to `_Ux86_64_init_local\' - ...
...分成了很多个模块，部分函数可能不在默认模块中。
解决：-lunwind -lunwind-x86_64 链接两个模块即可。libunwind
AI 伴侣报错：Error 908: The permission CAMERA has been denied. Please ...
解决方法：手机设置中 开启 AI伴侣的照相机权限。
蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空 - App Inven...
转会员提问：蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空？
解决方法：设置中打开 app 的“附近设备权限”即可。
标签内容过多，如何做到可上下滑动？ - App应用开发 - 清泛IT社区，为创新赋能！
...可滚动呢？
其实很简单：
垂直滚动布局就是为了解决区域显示不下，想要出现滚动操作的场景。
套上这个布局，搞定！
App Inventor 2 标签内容过多，如何做到可上下滑动？ · App Inventor 2 中文网
...让其可滚动呢？其实很简单：
垂直滚动布局就是为了解决区域显示不下，想要出现滚动操作的场景。
将组件放入这个布局，轻松搞定！
如有疑问，点此参与讨论。
您的改进建议 联系方式...
自动生成Linux下Makefile全攻略（automake原理） - C/C++ - 清泛网 - 专注C/C++及内核技术
...规则，只是这样复杂度很高，且修改起来不灵活。
为了解决这个难题，GNU推出了automake，根据简单的规则自动生成复杂的Makefile，automake help文档如下：
Usage: /usr/bin/automake [OPTION] ... [Makefile]...
Generate Makefile.in for configure from Ma...
viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
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Suppose you have two controllers (root vc and another pushed) on your navigation stack. When the third one is being pushed viewWillDisappear is called on the second whose view is going to disappear, right? So when you pop to root view controller (pop the third and...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
... portable 7.1.18 / 7.3.7 (control panel v3.2.4)
Installers: win32-7.1.18-0-VC14-installer / xampp-windows-x64-7.3.7-0-VC15-installer
Do not edit other files like httpd-xampp
Stop Apache
Open httpd-vhosts.conf located in **your_xampp_directory**\apache\conf\extra\ (your XAMPP directory might be b...
What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
...
Note that while both gcc and VC provide __FUNCTION__, they do slightly different things. gcc gives the equivalent of __func__. VC gives the undecorated, but still adorned, version of the name. For a method named "foo", gcc will give you "foo", VC will...