大约有 40,000 项符合查询结果（耗时：0.0452秒） [XML]
What is difference between instantiating an object using new vs. without
...... allocates a variable of type Time in local scope, generally on the stack, which will be destroyed when its scope ends.
By contrast:
Time* t = new Time(12, 0, 0);
... allocates a block of memory by calling either ::operator new() or Time::operator new(), and subsequently calls Time::Time() wi...
How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?
...I have a valid need for directly executing a sql command in Entity Framework. I am having trouble figuring out how to use parameters in my sql statement. The following example (not my real example) doesn't work.
...
No generic implementation of OrderedDictionary?
...e right. There's no generic equivalent of OrderedDictionary in the framework itself.
(That's still the case for .NET 4 too, as far as I'm aware.)
But you can vote for it at Visual Studio's UserVoice (2016-10-04)!
share
...
How to get a string after a specific substring?
...on world , i'm a beginner "
print my_string.split("world",1)[1]
split takes the word(or character) to split on and optionally a limit to the number of splits.
In this example split on "world" and limit it to only one split.
...
Uses of content-disposition in an HTTP response header
... is RFC 1806 and RFC 2183. People have also devised content-disposition hacking. It is important to note that the content-disposition header is not part of the HTTP 1.1 standard.
The HTTP 1.1 Standard (RFC 2616) also mentions the possible security side effects of content disposition:
15.5 Conte...
How to make a variadic macro (variable number of arguments)
...
Alex BAlex B
73.5k3636 gold badges187187 silver badges270270 bronze badges
...
Executing a command stored in a variable from PowerShell
... that I have build and stored in a variable in PowerShell. This command works if I do a Write-Host and copy and paste into a standard cmd.exe window.
...
JavaScript curry: what are the practical applications?
I don’t think I’ve grokked currying yet. I understand what it does, and how to do it. I just can’t think of a situation I would use it.
...
How to convert Nonetype to int or string?
...
detlydetly
25.7k1111 gold badges7777 silver badges136136 bronze badges
...
Detect if stdin is a terminal or pipe?
...
RichieHindleRichieHindle
232k4242 gold badges333333 silver badges383383 bronze badges
...