大约有 9,000 项符合查询结果（耗时：0.0146秒） [XML]
为啥React组件export导出不生效？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...rld!</h1>
)
}
}
export default Hello;
运行报错。
解决：export default 需要去掉大括号，即 mport Hello from './hello';
原因：当导入export default默认类时，无需大括号；导入使用其他类时，需要大括号。
举个例子，在 hello.js 文...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
...lloc] initWithFrame:[[UIScreen mainScreen] bounds]];
MyViewController *vc = [[MyViewContoller alloc] init...];
self.transitionController = [[TransitionController alloc] initWithViewController:vc];
self.window.rootViewController = self.transitionController;
[self.window makeKeyAndVisi...
fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
I'm using CUDA (VC++, Visual studio 2008sp1) to debug a FEM program. The program can only run on a Win32 platform, for the insufficiency of cuda. I think the library files linked are all compiled on the x86 platform, but when I compile it, I get the error message "fatal error LNK1112: module machine...
presentViewController and displaying navigation bar
...
Swift 5.*
Navigation:
guard let myVC = self.storyboard?.instantiateViewController(withIdentifier: "MyViewController") else { return }
let navController = UINavigationController(rootViewController: myVC)
self.navigationController?.present(navController, anima...
Storyboard doesn't contain a view controller with identifier
... This issue occurred in XCode 7.2 when pulling from a repo in which a VC in the storyboard had been assigned an identifier. Cleaning the project seemed to resolve the issue.
– Ed George
Jan 22 '16 at 19:16
...
80后夫妻创业，如今身价68亿，怎么做到？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...事。
汉鼎股份是一家建筑、公共安全管理智能化综合解决方案供应商。与年轻的创始人一样，这家公司给人一种朝气蓬勃的感觉。从2009年到2011年，公司营业收入和净利润连续3年保持90%以上的增长，2011年营业收入为3.3亿元，...
How do I create a new Swift project without using Storyboards?
...vigation controller. Here is a piece of code.
var window: UIWindow?
var navController:UINavigationController?
var viewController:ViewController?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(fram...
Removing the title text of an iOS UIBarButtonItem
...
Set the title of the pushing VC on 'viewWillAppear' with the same property. This way it is not removed.
– Guto Araujo
Dec 3 '13 at 0:41
...
Why does MSBuild look in C:\ for Microsoft.Cpp.Default.props instead of c:\Program Files (x86)\MSBui
When I run msbuild to build a vc2010 project I get the following error:
20 Answers
20
...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...程来处理的 IO 模型，但是效率相对比较差，也很容易出问题，所以暂时不做介绍了）。在这些多路复用的模式中，异步阻塞/非阻塞模式的扩展性和性能最好。
引入阻塞/非阻塞,、同步/异步比喻很形象的一段话：
有A，B，C，D...