大约有 40,000 项符合查询结果(耗时:0.0261秒) [XML]

https://stackoverflow.com/ques... 

Working with select using AngularJS's ng-options

...o work... note the ng-model="blah" which is saying "set $scope.blah to the selected value". Try this: <select ng-model="blah" ng-options="item.ID as item.Title for item in items"></select> Here's more from AngularJS's documentation (if you haven't seen it): for array data sources...
https://stackoverflow.com/ques... 

Xcode + remove all breakpoints

...l breakpoints. In Xcode4 press CMD(⌘)+6, in Xcode3 press CMD(⌘)+ALT+B. Select all breakpoints with CMD(⌘)+A and delete them, like deleting text, with backspace. There's no step 3 :) share | i...
https://stackoverflow.com/ques... 

PostgreSQL - fetch the row which has the Max value for a column

...sted index lookup into lives - on my machine -- the latter query plan was selected given my memory settings and -- histogram SELECT l1.* FROM lives AS l1 INNER JOIN ( SELECT usr_id, MAX(time_stamp) AS time_stamp_max FROM lives GROUP BY usr_id ) AS l2 ...
https://stackoverflow.com/ques... 

Saving enum from select in Rails 4.1

...num. I changed the input to be the following: f.input :color, :as => :select, :collection => Wine.colors.keys.to_a Which generated the following HTML: <select id="wine_color" name="wine[color]"> <option value=""></option> <option value="red">red</option> ...
https://stackoverflow.com/ques... 

Visual Studio - Shortcut to Navigate to Solution Explorer

Is there a keyboard shortcut in Visual Studio (aside from CTRL + TAB and selection) that would take me from inside a document directly into the solution explorer? I don't want to customize any shortcuts or change any default behavior. ...
https://stackoverflow.com/ques... 

How to get script of SQL Server data? [duplicate]

... the SQL Server Management Studio you can right click on your database and select: Tasks -> Generate Scripts Then simply proceed through the wizard. Make sure to set 'Script Data' to TRUE when prompted to choose the script options. SQL Server 2008 R2 Further reading: Robert Burke: SQL Se...
https://stackoverflow.com/ques... 

How to do this in Laravel, subquery where in

...sider this code: Products::whereIn('id', function($query){ $query->select('paper_type_id') ->from(with(new ProductCategory)->getTable()) ->whereIn('category_id', ['223', '15']) ->where('active', 1); })->get(); ...
https://stackoverflow.com/ques... 

How to fix “no valid 'aps-environment' entitlement string found for application” in Xcode 4.3?

...rrect in the build settings. You need to make sure the correct profile is selected for the "Debug" configuration, and to be safe, that you have selected the correct profile for both the "Debug" and child-node labelled "Any iOS SDK": Although this screenshot shows the "Automatic Developer" profil...
https://stackoverflow.com/ques... 

Oracle “(+)” Operator

...dize OUTER joins. The query would be re-written in ANSI-92 syntax as: SELECT ... FROM a LEFT JOIN b ON b.id = a.id This link is pretty good at explaining the difference between JOINs. It should also be noted that even though the (+) works, Oracle recommends not using it: Oracle re...
https://stackoverflow.com/ques... 

How do I create test and train samples from one dataframe with pandas?

... scikit learn's train_test_split is a good one. from sklearn.model_selection import train_test_split train, test = train_test_split(df, test_size=0.2) share | improve this answer ...