大约有 30,000 项符合查询结果（耗时：0.0525秒） [XML]
Deleting a file in VBA
... Check here. Basically do this:
Function FileExists(ByVal FileToTest As String) As Boolean
FileExists = (Dir(FileToTest) <> "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering:
Check fo...
Removing the first 3 characters from a string [closed]
What is the most efficient way to remove the first 3 characters of a string?
3 Answers
...
Get connection string from App.config
...connection =
System.Configuration.ConfigurationManager.
ConnectionStrings["Test"].ConnectionString;
Your assembly also needs a reference to System.Configuration.dll
share
|
improve this a...
How to use stringstream to separate comma separated strings [duplicate]
...
#include <iostream>
#include <sstream>
std::string input = "abc,def,ghi";
std::istringstream ss(input);
std::string token;
while(std::getline(ss, token, ',')) {
std::cout << token << '\n';
}
abc
def
ghi
...
Case insensitive searching in Oracle
...
Since 10gR2, Oracle allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters:
SQL> SET HEADING OFF
SQL> SELECT *
2 FROM NLS_SESSION_PARAMETERS
3 WHERE PARAMETER IN ('NLS_COMP', 'NLS_SORT');
NLS_SORT
BINARY
NLS_CO...
How to sort a list of strings?
...
The proper way to sort strings is:
import locale
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') # vary depending on your lang/locale
assert sorted((u'Ab', u'ad', u'aa'), cmp=locale.strcoll) == [u'aa', u'Ab', u'ad']
# Without using locale.strcoll ...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...ere is how you would encrypt/decrypt:
$key = 'password to (en/de)crypt';
$string = ' string to be encrypted '; // note the spaces
To Encrypt:
$iv = mcrypt_create_iv(
mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC),
MCRYPT_DEV_URANDOM
);
$encrypted = base64_encode(
$iv .
...
Entity Framework Provider type could not be loaded?
... Also, because of compiler optimization you might want to also do x.ToString() or it will take out the typeofs in Release.
– Jordan
Apr 15 '14 at 13:07
15
...
How to get C# Enum description from value? [duplicate]
...
int value = 1;
string description = Enumerations.GetEnumDescription((MyEnum)value);
The default underlying data type for an enum in C# is an int, you can just cast it.
...
Save ArrayList to SharedPreferences
... ArrayList with custom objects. Each custom object contains a variety of strings and numbers. I need the array to stick around even if the user leaves the activity and then wants to come back at a later time, however I don't need the array available after the application has been closed completely...