sort()Python使用的内置方法是什么算法?是否可以查看该方法的代码?
是否有像array_unique这样的对象方法?我有一堆带有'Role'对象的数组,我合并了,然后我想取出重复项:)
我有一个小控制面板,只是我做的一个小应用程序.我想最小化/放置控制面板上的/下降系统,以及电池寿命,日期,网络等.
谁可以给我一个线索,链接到教程或阅读的东西?
我正在尝试运行我在设备上使用phonegap制作的应用程序,并使用USB连接.
-> phonegap run android
[phonegap] detecting Android SDK environment...
[phonegap] using the local environment
[phonegap] compiling Android...
[phonegap] successfully compiled Android app
[phonegap] trying to install app onto device
[phonegap] no device was found
-> adb devices
List of devices attached
SH25PW103163 device
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我刚刚在这个设备上运行了eclipse中的原生Android应用程序,我已经激活了USB调试.
有什么不对?
我正在用Java设计一个小软件.我不知道我正在做什么的术语/定义,但我提示从Java到终端的命令.像这样的东西:
Process process = Runtime.getRuntime().exec("command");
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我以前在Linux中做过这个,我用过gksudo需要root密码的命令.
gksudoOS X中有没有?任何要求root密码的图形弹出窗口?
<div class="container">
<span>Some text, yay</span>
</div>
<div class="container">
<span>Some text, yay. But shit time, there is alot of text, so we get a problem with breaking lines and the given height :( How can I align vertical now?</span>
</div>
<style>
.container {
width: 100%;
height: 50px;
line-height: 50px;
border: 1px solid black;
}
.container span {
padding-left: 30px;
}
</style>
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这个解决方案效果很好,直到屏幕宽度太小 - 将我的文本分成几行.
当我谷歌问题时,我发现了许多疯狂的过于复杂的解决方案,使用javascript和div来推送我的内容.任何人都可以帮助我在没有添加更多标记的情况下完成这项工作吗?:)
无需支持Internet Explorer和旧版浏览器.
谢谢
在我的自定义UIPageViewController类中:
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
self.model = [[BSTCMWelcomingPageViewModel alloc] init];
self.dataSource = self.model;
self.delegate = self;
self.pageControl = [UIPageControl appearance];
self.pageControl.pageIndicatorTintColor = [UIColor lightGrayColor];
self.pageControl.currentPageIndicatorTintColor = [UIColor blackColor];
}
return self;
}
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然后我以编程方式设置ViewController按下按钮时的当前值:
- (void)scrollToNext
{
UIViewController *current = self.viewControllers[0];
NSInteger currentIndex = [self.model indexForViewController:current];
UIViewController *nextController = [self.model viewControllerForIndex:++currentIndex];
if (nextController) {
NSArray *viewControllers = @[nextController];
// This changes the View Controller, but PageControl doesn't update
[self setViewControllers:viewControllers …Run Code Online (Sandbox Code Playgroud) 我有一个UITableView.
在这里,我得到了不同的细胞.每个细胞都有一个模型.使用KVO和NotificationCenter,单元格会监听模型的更改.当我离开ViewController时,我收到此错误:
An instance 0x109564200 of class Model was deallocated while key value observers were still registered with it.
Observation info was leaked, and may even become mistakenly attached to some other object.
Set a breakpoint on NSKVODeallocateBreak to stop here in the debugger. Here's the current observation info:
<NSKeyValueObservationInfo 0x109429cc0> (
<NSKeyValueObservance 0x109429c50: Observer: 0x10942d1c0, Key path: name, Options: <New: NO, Old: NO, Prior: NO> Context: 0x0, Property: 0x10968fa00>
)
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在单元格中,我在设置/更改模型属性时执行此操作:
[_model addObserver:self
forKeyPath:@"name"
options:0
context:nil];
[[NSNotificationCenter defaultCenter] addObserver:self …Run Code Online (Sandbox Code Playgroud) 尝试时出现PDO
php symfony doctrine:insert-sql
错误我得到的错误:
Warning: PDO::__construct(): [2002] Connection refused (trying to connect via tcp://127.0.0.1:3306) in /Users/johannes/Programmering/PHP/htdocs/symfony/sfprojects/lib/vendor/symfony/lib/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Connection.php on line 470
databases.yml里
all:
doctrine:
class: sfDoctrineDatabase
param:
dsn: mysql:host=127.0.0.1;dbname=jobeet;
username: root
password: root
做一个 mysql -u root -p jobeet 有"根"作为密码,让我上网,所以没有问题存在.是的,我运行的mysql是MAMP的.
谢谢你的帮助.
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