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怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...erFunc(HWND hwnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime)
{
MessageBoxA(NULL,"zhaoya","msg",MB_OK);
Sleep(5000);
}
发现完全按照SetTimer时设置的那样，1秒弹出一个消息框，一个一个出来，Sleep好像根本就没有执行，线程根本没有睡眠阻塞，我把 M...
Determine project root from a running node.js application
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byte[] to hex string [duplicate]
...built in method for this:
byte[] data = { 1, 2, 4, 8, 16, 32 };
string hex = BitConverter.ToString(data);
Result: 01-02-04-08-10-20
If you want it without the dashes, just remove them:
string hex = BitConverter.ToString(data).Replace("-", string.Empty);
Result: 010204081020
If you want a mo...
Accessing dict keys like an attribute?
..., see below)
Attributes and items are always in sync
Trying to access non-existent key as an attribute correctly raises AttributeError instead of KeyError
Supports [Tab] autocompletion (e.g. in jupyter & ipython)
Cons:
Methods like .keys() will not work just fine if they get overwritten by inc...
C# Double - ToString() formatting with two decimal places but no rounding
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I use the following:
double x = Math.Truncate(myDoubleValue * 100) / 100;
For instance:
If the number is 50.947563 and you use the following, the following will happen:
- Math.Truncate(50.947563 * 100) / 100;
- Math.Truncate(5094.7563) / 100;
- 5094...
How to delete an object by id with entity framework
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In Entity Framework 6 the delete action is Remove. Here is an example
Customer customer = new Customer () { Id = id };
context.Customers.Attach(customer);
context.Customers.Remove(customer);
context.SaveChanges();
...
How do I use brew installed Python as the default Python?
I try to switch to Homebrew (after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
19 Answers...
List all of the possible goals in Maven 2?
...you indicate in the command line is linked to the lifecycle of Maven. For example, the build lifecycle (you also have the clean and site lifecycles which are different) is composed of the following phases:
validate: validate the project is correct and all necessary information is available.
compil...
./configure : /bin/sh^M : bad interpreter [duplicate]
...
To fix, open your script with vi or vim and enter in vi command mode (key Esc), then type this:
:set fileformat=unix
Finally save it
:x! or :wq!
share...