大约有 22,000 项符合查询结果（耗时：0.0348秒） [XML]
How do I use itertools.groupby()?
... # equivalent
>>> def islower(s):
... """Return True if a string is lowercase, else False."""
... return s.islower()
>>> print_groupby(sorted("bCAaCacAADBbB"), keyfunc=islower)
key: 'False'--> group: ['A', 'A', 'A', 'B', 'B', 'C', 'C', 'D']
key: 'True'--> group...
Java LinkedHashMap get first or last entry
...ke the follow comparisons. This solution belongs @feresr.
public static String FindLasstEntryWithArrayMethod() {
return String.valueOf(linkedmap.entrySet().toArray()[linkedmap.size() - 1]);
}
Usage of ArrayList Method
Similar to the first solution with a little bit different perfor...
Odd behavior when Java converts int to byte?
...e number as negative
public class castingsample{
public static void main(String args[]){
int i;
byte y;
i = 1024;
for(i = 1024; i > 0; i-- ){
y = (byte)i;
System.out.print(i + " mod 128 = " + i%128 + " also ");
System.out.println(i + " cast to byte " + " = " ...
What do linkers do?
...0,%rsi
11: 00 00 00
which should move the address of the hello world string into the rsi register, which is passed to the write system call.
But wait! How can the compiler possibly know where "Hello world!" will end up in memory when the program is loaded?
Well, it can't, specially after we ...
How can I solve a connection pool problem between ASP.NET and SQL Server?
...d Close throws an exception:
var connection = new SqlConnection(connectionString);
connection.Open();
// some code
connection.Close();
The correct way would be this:
var connection = new SqlConnection(ConnectionString);
try
{
connection.Open();
someCall (connection);
}
...
RESTful web service - how to authenticate requests from other services?
...xample "my4wesomeP4ssword!"
11630my4wesomeP4ssword!
Then do MD5 of that string:
05a9d022d621b64096160683f3afe804
When do you call a request, always use this token,
https://mywebservice.com/?token=05a9d022d621b64096160683f3afe804&op=getdata
This token is always unique everyday, so I gues...
Creating a new DOM element from an HTML string using built-in DOM methods or Prototype
I have an HTML string representing an element: '<li>text</li>' . I'd like to append it to an element in the DOM (a ul in my case). How can I do this with Prototype or with DOM methods?
...
How to hash a password
...could use
var data = Encoding.ASCII.GetBytes(password);
and to get back string from md5data or sha1data
var hashedPassword = ASCIIEncoding.GetString(md5data);
share
|
improve this answer
...
Sending data back to the Main Activity in Android
...data URI to this intent as appropriate.
resultIntent.putExtra("some_key", "String data");
setResult(Activity.RESULT_OK, resultIntent);
finish();
To access the returned data in the calling Activity override onActivityResult. The requestCode corresponds to the integer passed in in the startActivity...
Checking if a blob exists in Azure Storage
...asy as:
public static bool BlobExistsOnCloud(CloudBlobClient client,
string containerName, string key)
{
return client.GetContainerReference(containerName)
.GetBlockBlobReference(key)
.Exists();
}
...