大约有 45,000 项符合查询结果（耗时：0.0514秒） [XML]
How do you get the current time of day?
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DateTime.Now.TimeOfDay gives it to you as a TimeSpan (from midnight).
DateTime.Now.ToString("h:mm:ss tt") gives it to you as a string.
DateTime reference: https://msdn.microsoft.com/en-us/library/system.datetime
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Drop multiple tables in one shot in mysql
...nd C. Then we can use the following syntax to drop all tables.
DROP TABLE IF EXISTS B,C,A;
This can be placed in the beginning of the script instead of individually dropping each table.
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i...
Break a previous commit into multiple commits
...git status should show no pending modifications, deletions, or additions.
Now, you have to decide which commit(s) you want to split.
A) Splitting the most recent commit
To split apart your most recent commit, first:
$ git reset HEAD~
Now commit the pieces individually in the usual way, produci...
Generating all permutations of a given string
...oid permutation(String prefix, String str) {
int n = str.length();
if (n == 0) System.out.println(prefix);
else {
for (int i = 0; i < n; i++)
permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
}
}
(via Introduction to Programmin...
How do I know which version of Javascript I'm using?
... Mozilla support javascript up to version 1.8 but syntax is different: <script type="application/javascript;version=1.7"/>
– Yukulélé
Mar 16 '14 at 20:27
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AngularJs ReferenceError: $http is not defined
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StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
...
Import / Export database with SQL Server Server Management Studio
..., Tasks -> Generate Scripts...
Then follow the wizard.
For SSMS2008+, if you want to also export the data, on the "Set Scripting Options" step, select the "Advanced" button and change "Types of data to script" from "Schema Only" to "Data Only" or "Schema and Data".
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Placeholder in IE9
...h ie9 the placeholder disappears when the text input is on focus. This is different than HTML5 behavior
– gerrytan
Apr 8 '14 at 1:35
1
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Get current date/time in seconds
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Date.now()
gives milliseconds since epoch. No need to use new.
Check out the reference here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
(Not supported in IE8.)
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install / uninstall APKs programmatically (PackageManager vs Intents)
... As I said, these are not available to third party applications. If you are making your own system image, you have the platform implementation, and you can find the functions there, but they are not part of the APIs available to normal third party apps.
– hackbod
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