大约有 40,000 项符合查询结果（耗时：0.0549秒） [XML]
“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing
...owngraded the file to XLS and it worked for me without installing anything extra.
– Mark Boltuc
Nov 5 '14 at 13:44
8
...
Currency formatting in Python
...
Cool idea! With Python 3.6 and f-strings, it looks even more beautiful: print(f'Value is: ${value:,.2f}'.replace('$-', '-$'))
– Timo Saloranta
Apr 10 '19 at 15:30
...
How do I copy items from list to list without foreach?
...
For a list of elements
List<string> lstTest = new List<string>();
lstTest.Add("test1");
lstTest.Add("test2");
lstTest.Add("test3");
lstTest.Add("test4");
lstTest.Add("test5");
lstTest.Add("test6");
If you want to copy all the elements
List&...
Check if a folder exist in a directory and create them using C#
...
This should help:
using System.IO;
...
string path = @"C:\MP_Upload";
if(!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
share
|
improve this a...
Convert string to Python class object?
Given a string as user input to a Python function, I'd like to get a class object out of it if there's a class with that name in the currently defined namespace. Essentially, I want the implementation for a function which will produce this kind of result:
...
Calculating text width
...
it's shorter
it works when passing an <input>, <span>, or "string".
it's faster for frequent uses because it reuses an existing DOM element.
Demo: http://jsfiddle.net/philfreo/MqM76/
// Calculate width of text from DOM element or string. By Phil Freo <http://philfreo.com>
$....
Sending mail from Python using SMTP
...NAME, PASSWORD)
try:
conn.sendmail(sender, destination, msg.as_string())
finally:
conn.quit()
except:
sys.exit( "mail failed; %s" % "CUSTOM_ERROR" ) # give an error message
share
|
...
How to change the type of a field?
...ase, it looks like you're trying to change the $type from 1 (double) to 2 (string).
So simply load the document from the DB, perform the cast (new String(x)) and then save the document again.
If you need to do this programmatically and entirely from the shell, you can use the find(...).forEach(fun...
Creating an iframe with given HTML dynamically
...note of the html content wrapped with <html> tags and the iframe.src string.
The iframe element needs to be added to the DOM tree to be parsed.
document.body.appendChild(iframe);
You will not be able to inspect the iframe.contentDocument unless you disable-web-security on your browser.
Yo...
How to create ASP.NET Web API Url?
...troller : ApiController
{
// GET /api/values
public IEnumerable<string> Get()
{
// returns /api/values/123
string url = Url.Route("DefaultApi", new { controller = "values", id = "123" });
return new string[] { "value1", "value2" };
}
// GET /api/val...