大约有 30,000 项符合查询结果（耗时：0.0367秒） [XML]
What is the maximum possible length of a .NET string?
...
Based on my highly scientific and accurate experiment, it tops out on my machine well before 1,000,000,000 characters. (I'm still running the code below to get a better pinpoint).
UPDATE:
After a few hours, I've given up. Fi...
Hibernate: Automatically creating/updating the db tables based on entity classes
...ated -->
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create" />
</properties>
used Wildfly's in-memory H2 database
share
|
improve this ...
What are the “must have” jQuery plugins? [closed]
...bjects and arrays. That's all this is for. It doesn't actually talk to databases on the server side.
– Hugoware
Nov 6 '08 at 5:09
...
Why is nginx responding to any domain name?
...
64
You should have a default server for catch-all, you can return 404 or better to not respond at ...
Strings in a DataFrame, but dtype is object
...ndarray. Every element in a ndarray must has the same size in byte. For int64 and float64, they are 8 bytes. But for strings, the length of the string is not fixed. So instead of save the bytes of strings in the ndarray directly, Pandas use object ndarray, which save pointers to objects, because of ...
Search for one value in any column of any table inside a database
...pe char(64) ) inside any column of any table inside one MS SQL Server database?
7 Answers
...
What are the differences between json and simplejson Python modules?
...implejson(SIMPLE_DATA)
And the results on my system (Python 2.7.4, Linux 64-bit):
Complex real world data:
json dumps 1.56666707993 seconds
simplejson dumps 2.25638604164 seconds
json loads 2.71256899834 seconds
simplejson loads 1.29233884811 seconds
Simple data:
...
How to make PDF file downloadable in HTML link?
...
works like a charm with chrome Version 39.0.2171.65 (64-bit) !
– edelans
Nov 21 '14 at 20:32
The...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...har *CExcelOp::GetColumnName(long icolumn)
{
static char column_name[64];
size_t str_len = 0;
while(icolumn > 0)
{
int num_data = icolumn % 26;
icolumn /= 26;
if (num_data == 0)
{
num_data = 26;
icolumn--;
}
column_name[str_len] = (char)((num_data-1) + 'A' );
...
Convert from ASCII string encoded in Hex to plain ASCII?
...his, here's one of the shortest, using only python-provided stuff:
import base64
hex_data ='57696C6C20796F7520636F6E76657274207468697320484558205468696E6720696E746F20415343494920666F72206D653F2E202E202E202E506C656565656173652E2E2E212121'
ascii_string = str(base64.b16decode(hex_data))[2:-1]
print (a...