大约有 40,000 项符合查询结果(耗时:0.0540秒) [XML]
Is it bad to have my virtualenv directory inside my git repository?
...ith pip install -r requirements.txt. RyanBrady already showed how you can string the deploy statements in a single line:
# before 15.1.0
virtualenv --no-site-packages --distribute .env &&\
source .env/bin/activate &&\
pip install -r requirements.txt
# after deprecation o...
Copying files from one directory to another in Java
...ts()) {
targetLocation.mkdir();
}
String[] children = sourceLocation.list();
for (int i=0; i<children.length; i++) {
copyDirectory(new File(sourceLocation, children[i]),
new File(targetLocation, children[...
How to add an image to a JPanel?
...e image according to the size of the JLabel?
– coding_idiot
Dec 7 '11 at 14:26
1
Nice code! I'm n...
Clearing using jQuery
...security reasons you can't set the value of a file input, even to an empty string.
All you have to do is reset the form where the field or if you only want to reset the file input of a form containing other fields, use this:
function reset_field (e) {
e.wrap('<form>').parent('form').trig...
How to make a flat list out of list of lists?
...
@gouravkr that's right, but here, the string is much less of a value than it is an iterable. The question is about lists of lists, so indeed any other iterable in the parent list is not guaranteed to work. Lists (as homogeneous data structures) most often hold it...
Is storing a delimited list in a database column really that bad?
...t fetching the whole list.
Can't store a list longer than what fits in the string column.
Hard to search for all entities with a given value in the list; you have to use an inefficient table-scan. May have to resort to regular expressions, for example in MySQL:
idlist REGEXP '[[:<:]]2[[:>:]]'*...
Find the number of columns in a table
...
Using JDBC in Java:
String quer="SELECT * FROM sample2 where 1=2";
Statement st=con.createStatement();
ResultSet rs=st.executeQuery(quer);
ResultSetMetaData rsmd = rs.getMetaData();
int NumOfCol=0;
NumOfCol=rsmd.getColum...
How do I set/unset a cookie with jQuery?
...se it, it will give a JSON parse error. Solved it with an "if typeof x == 'string'" do the JSON.parse, else, just use the object. 6 goddamn hours looking for the error in all the wrong places
– Andrei Cristian Prodan
Jul 2 '13 at 12:13
...
How to create a button programmatically?
...
It's weird that they decided to do action with string instead of using a function (with strings it's even more unsafe than selectors!). Backwards compatibility with Obj-C probably :(
– Ixx
Dec 8 '14 at 21:26
...
Checking if a SQL Server login already exists
...
Why was it necessary to create a statement as a string and then use sp_executesql, rather than just directly entering CREATE LOGIN [@loginName] FROM ...? Pardon my ignorance, I'd like to learn...
– LarsH
May 8 '13 at 15:10
...
