大约有 36,000 项符合查询结果（耗时：0.0479秒） [XML]
When I catch an exception, how do I get the type, file, and line number?
...
|
edited Feb 20 '13 at 18:51
David Cain
13.4k1010 gold badges6161 silver badges6868 bronze badges
...
Can the Unix list command 'ls' output numerical chmod permissions?
...
it almost can ..
ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/) \
*2^(8-i));if(k)printf("%0o ",k);print}'
share
|
improv...
Better way to check variable for null or empty string?
...
10 Answers
10
Active
...
UILabel - Wordwrap text
...
302
If you set numberOfLines to 0 (and the label to word wrap), the label will automatically wrap a...
How to count duplicate value in an array in javascript
...];
array_elements.sort();
var current = null;
var cnt = 0;
for (var i = 0; i < array_elements.length; i++) {
if (array_elements[i] != current) {
if (cnt > 0) {
document.write(current + ' comes --> ' + cnt + ' times<br>');
...
error: ‘NULL’ was not declared in this scope
...
answered Jan 20 '09 at 17:14
Johannes Schaub - litbJohannes Schaub - litb
453k112112 gold badges830830 silver badges11501150 bronze badges
...
How do I set cell value to Date and apply default Excel date format?
I've been using Apache POI for some time to read existing Excel 2003 files programmatically. Now I have a new requirement to create entire .xls files in-memory (still using Apache POI) and then write them to a file at the end. The only problem standing in my way is the handling of cells with dates.
...
Large Numbers in Java
...a.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("2743561234");
reallyBig = reallyBig.add(notSoBig);
share
|
improve thi...
Formatting “yesterday's” date in python
...
406
Use datetime.timedelta()
>>> from datetime import date, timedelta
>>> yester...