大约有 47,000 项符合查询结果（耗时：0.0838秒） [XML]
How to prepend a string to a column value in MySQL?
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edited Mar 25 '09 at 10:06
answered Mar 25 '09 at 9:18
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Cannot kill Python script with Ctrl-C
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edited Feb 1 '14 at 9:01
vahid abdi
7,39244 gold badges2626 silver badges3333 bronze badges
answered...
How to tell if rails is in production?
...ment if the request is considered "local" (that is from localhost or 127.0.0.1), you can override this by adding this to your ApplicationController
def local_request?
false
end
You can find this method in the docs in the api
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Addressing localhost from a VirtualBox virtual machine [closed]
...have a local test/development server (HTTP, of course), listening to port 8000.
22 Answers
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Output array to CSV in Ruby
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330
To a file:
require 'csv'
CSV.open("myfile.csv", "w") do |csv|
csv << ["row", "of", "CSV...
List of special characters for SQL LIKE clause
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edited Jun 20 at 9:12
community wiki
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Android: Test Push Notification online (Google Cloud Messaging) [closed]
...While creating API Access Key on google developer console, you have to use 0.0.0.0/0 as ip address. (For testing purpose).
In case of receiving invalid Registration response from GCM server, please cross check the validity of your device token. You may check the validity of your device token usin...
How to rotate the background image in the container?
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#myelement:before
{
content: "";
position: absolute;
width: 200%;
height: 200%;
top: -50%;
left: -50%;
z-index: -1;
background: url(background.png) 0 0 repeat;
-webkit-transform: rotate(30deg);
-moz-transform: rotate(30deg);
-ms-transform: rotate(30deg);...
How to execute an external program from within Node.js?
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140
var exec = require('child_process').exec;
exec('pwd', function callback(error, stdout, stderr){
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Replace None with NaN in pandas dataframe
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140
You can use DataFrame.fillna or Series.fillna which will replace the Python object None, not the...