大约有 11,643 项符合查询结果（耗时：0.0264秒） [XML]
When should assertions stay in production code? [closed]
...age is compiled or interpreted, your roll-out plans, obfuscation strategy, etc. I have seen one case where a comment actually caused a bug, but that was a weird one.
– DaveWalley
Feb 25 '14 at 22:57
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Executing an EXE file using a PowerShell script
...amp; 'c:\path with spaces\to\executable.exe' -arguments ; second command ; etc
By placing a " (double quote) before the & (ampersand) it executes the executable. In none of the examples I have found this was mentioned. Without the double quotes the ps prompt opens and waits for input.
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Insert a line break in mailto body
...his also applies to all url schemes such as gopher, smtp, sdp, imap, ldap, etc..
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Best way to reverse a string
...uld the result of most implementations based on code units (Array.Reverse, etc) or even code points (reversing with special care for surrogate pairs).
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
public static class Test
{
private static IEnume...
Properly escape a double quote in CSV
...("), backslash (\) and NUL (the NULL byte).
Use fputcsv() to write, and fgetcsv() to read, which will take care of all.
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Python 3.x rounding behavior
...context for the Decimal module that does this for you implicitly. See the setcontext() function.
– kindall
May 31 '12 at 21:04
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boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...performed by the first key, then the second key if the first one is equal, etc. This order allows for partial searches where only the first keys are specified:
phonebook pb;
...
// look for all Whites
std::pair<phonebook::iterator,phonebook::iterator> p=
pb.equal_range(boost::make_tuple(...
How can I position my div at the bottom of its container?
...<td valign="top">
<div id="main">Lorem ipsum, etc.</div>
</td>
</tr>
<tr>
<td valign="bottom">
<div id="footer">Copyright some evil company...</div>
</t...
How do I rename a column in a SQLite database table?
...ucture and data. If you want metadata (indices, foreign keys, constraints, etc.), then you also have to issue statements to create them on the replaced table.
– Tom Mayfield
Sep 5 '12 at 18:04
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When should we use Observer and Observable?
... end of the process rather than at each small step). This is done through setChanged(). So you just call it when you changed something to the Observable and you want the rest of the Observers to eventually know about it.
Notifying all observers that the specific Observable has changed state. This is...