大约有 40,000 项符合查询结果（耗时：0.0691秒） [XML]
How to set a default value for an existing column
...
This does not add nothing new to other answers, is a manual method - cannot be scripted, and it states as the "the correct way"..
– Andre Figueiredo
Aug 7 '17 at 17:50
...
What is the difference between std::array and std::vector? When do you use one over other? [duplicat
...nters into the heap. (So when you allocate a std::vector, it always calls new.) They are slightly slower to access because those pointers have to be chased to get to the arrayed data... But in exchange for that, they can be resized and they only take a trivial amount of stack space no matter how ...
Defining a percentage width for a LinearLayout? [duplicate]
...
Use new percentage support library
compile 'com.android.support:percent:24.0.0'
See below example
<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ap...
Best practices for SQL varchar column length [closed]
Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length .
...
Get array of object's keys
...re ES5?
– Andrew S
Sep 10 '18 at 13:51
|
show 1 more comment
...
Manually adding a Userscript to Google Chrome
...
Great answer - updated to reflect the new Chrome "web store only" policy. You can only drag .user.js files into the Extensions window.
– crb
Jul 9 '12 at 20:31
...
Simple way to transpose columns and rows in SQL?
... you apply the aggregate function sum() with the case statement to get the new columns for each color.
Unpivot and Pivot Static Version:
Both the UNPIVOT and PIVOT functions in SQL server make this transformation much easier. If you know all of the values that you want to transform, you can hard-...
Command to get nth line of STDOUT
...etc...)
– user10607
Jul 3 '15 at 11:51
|
show 1 more comme...
What are the typical reasons Javascript developed on Firefox fails on IE? [closed]
...nnerHTML = html;
} catch (exc) {
function getElm(html) {
// Create a new element and return the first child
var e = document.createElement('div');
e.innerHTML = html;
return e.firstChild;
};
function replace(elms) {
// Remove the old elements from 'elm'
while (elm.children.l...
Regex group capture in R with multiple capture-groups
...
51
gsub does this, from your example:
gsub("\\((.*?) :: (0\\.[0-9]+)\\)","\\1 \\2", "(sometext ::...