大约有 40,000 项符合查询结果（耗时：0.0338秒） [XML]
How to download a file from a URL in C#?
...ethod also supports local files as 1st parameter
– oo_dev
Aug 22 '17 at 8:35
The MSDN doc did mention to use HttpClien...
Find where python is installed (if it isn't default dir)
...isn't in it's default directory, there surely is a way of finding it's install location from here?
11 Answers
...
What is the fastest way to compute sin and cos together?
.... If you need strong optimization, perhaps you should use it.
Here is a small example: http://home.broadpark.no/~alein/fsincos.html
Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669
Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...
Pickle or json?
...ccf1b3fa91f4399902bb534/raw/03e8dbab11b5605bc572bc117c8ac34cfa959a70/pickle_vs_json.py
python pickle_vs_json.py
Results with python 2.7 on a decent 2015 Xeon processor:
Dir Entries Method Time Length
dump 10 JSON 0.017 1484510
load 10 JSON 0.375 -
dump 10 Pickle 0.011 ...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
... */
public function remove() {
if(isset($_POST['dosubmit'])) {
$this->content_check_db = pc_base::load_model('content_check_model');
$this->hits_db = pc_base::load_model('hits_model');
$this-...
Why unsigned integer is not available in PostgreSQL?
I came across this post ( What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
...
Is it possible to GROUP BY multiple columns using MySQL?
...garding SUM using with GROUP BY. If GROUP BY only by one column, then SUMs all values of each distinct (different) the column value sqlfiddle.com/#!9/1cbde2/2. If GROUP BY two columns. Then mysql at first checks if for the first column value there are different values in the second column. If yes, t...
System.IO.Packaging
...the docs for any of the actual methods/objects/etc. in the namespace, they all say "Assembly: WindowBase.dll"
– dlev
Aug 31 '11 at 16:39
...
How To Change DataType of a DataColumn in a DataTable?
... of the column after the DataTable is filled, you can change it after you call FillSchema, but before you call Fill. For example, say the 3rd column is the one you want to convert from double to Int32, you could use:
adapter.FillSchema(table, SchemaType.Source);
table.Columns[2].DataType = typeof (...
pretty-print JSON using JavaScript
...or sure) and not HTML. Output can be seen inside console. You can edit the _variables inside the function adding some more styling.
function JSONstringify(json) {
if (typeof json != 'string') {
json = JSON.stringify(json, undefined, '\t');
}
var
arr = [],
_stri...