大约有 19,000 项符合查询结果（耗时：0.0343秒） [XML]
Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
...
Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particu...
MySQL DISTINCT on a GROUP_CONCAT()
...H(REPLACE(tableName.categories, ' ', ''))+numbers.n-1
) s;
Please see fiddle here.
share
|
improve this answer
|
follow
|
...
Method to Add new or update existing item in Dictionary
...
I know it is not Dictionary<TKey, TValue> class, however you can avoid KeyNotFoundException while incrementing a value like:
dictionary[key]++; // throws `KeyNotFoundException` if there is no such key
by using ConcurrentDictionary<TKey, TValue> and its really nice method AddOrUpdate...
Targeting .NET Framework 4.5 via Visual Studio 2010
...Setup Project for deploying msi installers... "upgrade" feels more like a sidegrade...
– ecoe
Nov 11 '14 at 13:53
6
...
Android: create a popup that has multiple selection options
...builder.setItems(colors, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// the user clicked on colors[which]
}
});
builder.show();
The output (on Android 4.0.3):
(Background map not included. ;))
...
How do I connect to a MySQL Database in Python?
...vanced usage
Once you know how it works, You may want to use an ORM to avoid writing SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python community is SQLAlchemy.
I strongly advise you to use it: your life is going to be much easier.
I recently d...
Exclude folders from Eclipse search
...ed to type in the filters, it could take longer.
– egid
Jan 10 '12 at 22:17
When using this method, be sure to also cl...
Is it possible to execute code once before all tests run?
...ss SetupAssemblyInitializer
{
[AssemblyInitialize]
public static void AssemblyInit(TestContext context)
{
// Initalization code goes here
}
}
If you have more than one unit test assembly, I'm not aware of anything that encompasses more than one assembly.
As far as I'm awar...
How do I deep copy a DateTime object?
...r can next place an order. Calling the function to create a copy produces side effects I don't want.
– Billy ONeal
Apr 5 '10 at 16:19
...
How do I use FileSystemObject in VBA?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...