大约有 42,000 项符合查询结果(耗时:0.0331秒) [XML]
Operator Overloading with C# Extension Methods
...t's not possible to do the operators, you could always just create Add (or Concat), Subtract, and Compare methods....
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Whatever.Test
{
public static class Extensions
{
public static i...
Path.Combine for URLs?
...railing slash round for quite a while all for the sake of not doing string concat.
– Carl
Jan 12 '11 at 16:10
66
...
How do I set the version information for an existing .exe, .dll?
...e 7zS.sfx stub, the first part with the VERSIONINFO inside that you use to concat together a self extracting archive. Manually you can also rename 7zS.sfx in 7zS.exe and edit it in Visual Studio but since the version number is changing for every build you prefer a batch file with rcedit statements i...
SQL Server query to find all permissions/access for all users in a database
...) WHEN 'SCHEMA' THEN SCHEMA_NAME(dp.major_id) WHEN 'OBJECT_OR_COLUMN' THEN CONCAT_WS('.', OBJECT_SCHEMA_NAME(dp.major_id), OBJECT_NAME(dp.major_id), c.[name]) END FROM sys.database_principals AS p LEFT OUTER JOIN sys.database_permissions AS dp ON p.principal_id = dp.grantee_principal_id LEFT OUTER J...
pandas dataframe columns scaling with sklearn
...]
df_norm = (df - df.min()) / (df.max() - df.min())
print df_norm
print pd.concat((df_norm, dfTest.C),1)
A B
0 0.000000 0.000000
1 0.926219 0.363636
2 0.935335 0.628645
3 1.000000 0.961407
4 0.938495 1.000000
A B C
0 0.000000 0.000000 big
1 0...
Determine path of the executing script
...ll start with a '/'. Otherwise, it must be relative to the cwd and you can concat the two paths to get the full path.
Edit: it sounds like you'd only need the script.name above and to strip off the final component of the path. I've removed the unneeded cwd() sample and cleaned up the main script an...
How to join two JavaScript Objects, without using JQUERY [duplicate]
...s(obj2).forEach(k => merged[k] = obj2[k]);
OR
Object.keys(obj1)
.concat(Object.keys(obj2))
.forEach(k => merged[k] = k in obj2 ? obj2[k] : obj1[k]);
3) Simplest way:
var merged = {};
Object.assign(merged, obj1, obj2);
...
How to list the contents of a package using YUM?
...s a sample command to dump the contents
echo 'SELECT packages.name, GROUP_CONCAT(files.name, ", ") AS files FROM files JOIN packages ON (files.pkgKey = packages.pkgKey) GROUP BY packages.name LIMIT 10;' | sqlite3 -line /var/cache/yum/x86_64/7/base/gen/primary_db.sqlite
: remove "LIMIT 10" above f...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
..._unicode_ci;
Run this query that gives you what needs to be rung
SELECT CONCAT(
'ALTER TABLE ', table_name, ' CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; ',
'ALTER TABLE ', table_name, ' CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; ')
FROM information_schema.TABLES AS T...
Clojure: reduce vs. apply
...more vague and thus can only be optimized on a case-by-case basis. str and concat are the two prevalent exceptons.
– cgrand
Aug 22 '13 at 9:41
1
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