大约有 23,000 项符合查询结果（耗时：0.0333秒） [XML]
Rails 4: List of available datatypes
...:date
:datetime
:decimal
:float
:integer
:bigint
:primary_key
:references
:string
:text
:time
:timestamp
Source: http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/SchemaStatements.html#method-i-add_column
These are the same as with Rails 3.
If you use PostgreSQL, you can also tak...
Get/pick an image from Android's built-in Gallery app programmatically
...r own action
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViewById(R.id.Button01)
.setOnCl...
Mac OSX Lion DNS lookup order [closed]
... the hosts file, I have found that in some circumstances, Lion queries the IPv6 address for a domain if it senses that a domain is unreachable over the IPv4 network.
I discovered this when I noticed some ads that I had never seen before on Snow Leopard because I had redirected the ad domains to 127...
SHFileOperation函数总结（文件夹的移动、复制、删除） - C/C++ - 清泛网 -...
...leOperation用法总结：
//删除文件或者文件夹
bool DeleteFile(char * lpszPath)
{
SHFILEOPSTRUCT FileOp={0};
FileOp.fFlags = FOF_ALLOWUNDO | //允许放回回收站
FOF_NOCONFIRMATION; //不出现确认对话框
FileOp.pFrom = lpszPath;
FileOp.pTo = NULL; //一定要是NULL
FileOp...
Escape a string for a sed replace pattern
In my bash script I have an external (received from user) string, which I should use in sed pattern.
14 Answers
...
How do I create my own URL protocol? (e.g. so://…) [closed]
...
(Default) here means empty string. Don't take it literally.
– deerchao
Apr 5 '13 at 9:02
|
s...
Practical non-image based CAPTCHA approaches?
...rflow. This is necessary to prevent bots, spammers, and other malicious scripted activity. We only want human beings to post or edit things here!
...
How to check type of variable in Java?
...trary type that is not defined in your Typetester class - in this instance String, for example?
– Tash Pemhiwa
Oct 7 '13 at 14:16
7
...
What encoding/code page is cmd.exe using?
...of the program.
However, programs that use Win32 APIs can write UTF-16LE strings directly
to the console with
WriteConsoleW.
This is the only way to get correct output without setting codepages. And
even when using that function, if a string is not in the UTF-16LE encoding
to begin with, a Win32 p...
How do I handle newlines in JSON?
..." : 1, "stack" : "sometext\\n\\n"}';
(You need to escape the "\" in your string (turning it into a double-"\"), otherwise it will become a newline in the JSON source, not the JSON data.)
share
|
i...