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第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...看本节例子最终运行效果：
编译运行环境：
nasm：Inter x86汇编编译工具，用户将我们的汇编代码编译为二进制。（下载地址）
Bochs：运行os的虚拟机工具，模拟加载我们生成的软盘映像，并运行os。（下载地址）
代码...
How Do I Get the Query Builder to Output Its Raw SQL Query as a String?
...actual question into consideration, you could actually do the following to convert the current single query instead of all previous queries:
$sql = $query->toSql();
$bindings = $query->getBindings();
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git command to move a folder inside another
...
If git converts line endings, this results in the problem described by @Bart. For this to work you have to do the following: git config --global core.autocrlf false
– Mariano Dupont
Dec 16 '16 ...
Node.js get file extension
...pe to an extension will get you the file extension :).
Restify BodyParser converts this header in to a property with name type
File {
domain:
Domain {
domain: null,
_events: { .... },
_eventsCount: 1,
_maxListeners: undefined,
members: [ ... ] },
_events: {},
_ev...
How can I create a simple message box in Python?
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this is not tkinter, it's not shipped by default, strange, who is interested with introducing such simple functionality to bring unnecessary dependencies?
– Tebe
Nov 22 '12 at 16:50
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Difference between len() and .__len__()?
...ye, and generally should not be called directly.
It was decided at some point long ago getting the length of something should be a function and not a method code, reasoning that len(a)'s meaning would be clear to beginners but a.len() would not be as clear. When Python started __len__ didn't even e...
Are list-comprehensions and functional functions faster than “for loops”?
...ing tested this myself on the problem of computing distances between all points within a set of points, functional programming (using the starmap function from the built-in itertools module) turned out to be slightly slower than for-loops (taking 1.25 times as long, in fact). Here is the sample code...
How many and which are the uses of “const” in C++?
...hods won't change the logical state of this object.
struct SmartPtr {
int getCopies() const { return mCopiesMade; }
};
Use const for copy-on-write classes, to make the compiler help you to decide when and when not you need to copy.
struct MyString {
char * getData() { /* copy: caller m...
Get the new record primary key ID from MySQL insert query?
... document (Code, Title, Body)
VALUES (
sha1( concat (convert ( now() , char), ' ', getAutoincrementalNextval ('document') ) ),
'Title',
'Body'
);
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Deprecated: mysql_connect()
... will be removed in the future.
Use mysqli_* function or pdo
Read Oracle Converting to MySQLi
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