Qt 错误 The program has unexpectedly finished
来源:互联网 发布:刘涛二手衣店淘宝网址 编辑:程序博客网 时间:2024/06/06 13:22
在我短短的学习程序时间里,这个问题经常出现,先记录下来并作以后的参考。
1.project中有的控件没有实例化(没有new):
switch1->set("air",10);
switch1->setParent(this);
第一次忘了 switch1 = new switch_button;结果就出错
switch1 = new switch_button;
switch1->set("air",10);
switch1->setParent(this);
加上以后就可以了
2.数据库出错。
获取一个表时new 一个 QSqlQuery query,搜索另一个表就在new一个。
3.变量没给初值
今天写了一个button数组动态定义。结果数组的button[num].中的num没有给初值,结果问题找了很久。所以变量定个初值时好习惯!
0 0
- Qt 错误 The program has unexpectedly finished
- Qt Error: The program has unexpectedly finished 解决思想
- Qt的The program has unexpectedly finished.问题
- The program has unexpectedly finished.问题小结
- Fedora19安装smplayer后遇到"Mplayer has finished unexpectedly. Exit code 127"的错误
- The application ... has stopped unexpectedly
- The application has stopped unexpectedly
- anroid开发遇到问题:跳转出现错误 the application xxx has stopped unexpectedly
- 跳转出现错误 the application test has stopped unexpectedly 的解决
- The first QT Program !
- android:The application has stopped unexpectedly, please try again.
- The virtual machine 'xxx' has terminated unexpectedly during startup with
- 【Android】The application has stopped unexpectedly.Please try again.
- Android——The application study has stopped unexpectedly
- Jprofiler 7.2.3 : The network connection has been lost. The JVM has terminated unexpectedly
- Waiting because the touched window has not finished
- The "ValidateXaml" task failed unexpectedly. vb silverlight socket 错误
- git push错误;fatal: The remote end hung up unexpectedly
- hdu 1241 Oil Deposits
- 归并排序
- KTU Programming Camp (Day 2) Problem F. Sequence of words 后缀数组+线段树
- 阿里云服务器Ubuntu12.04_64bit+php5+MySQL部署过程详解
- 经典导航栏按钮代码
- Qt 错误 The program has unexpectedly finished
- 在Mac中设置Ctrl+C/V进行复制/粘贴
- Java ArrayList 内部源码实现
- 记录使用GitHub经历
- Volley
- skia : --- SkImageDecoder::Factory returned null
- 线程面试题
- jquery.min.js一引入到工程中显示红叉
- HTTPS详解——学习总结