大约有 18,000 项符合查询结果（耗时：0.0270秒） [XML]
Test whether a glob has any matches in bash
...for the existence of a single file, I can test for it using test -e filename or [ -e filename ] .
19 Answers
...
How to split a string in Java
...
Just use the appropriate method: String#split().
String string = "004-034556";
String[] parts = string.split("-");
String part1 = parts[0]; // 004
String part2 = parts[1]; // 034556
Note that this takes a regular expression, so remember to escape ...
How do I create a MongoDB dump of my database?
What command do I use and run?
19 Answers
19
...
++someVariable vs. someVariable++ in JavaScript
In JavaScript you can use ++ operator before ( pre-increment ) or after the variable name ( post-increment ). What, if any, are the differences between these ways of incrementing a variable?
...
Is there a difference between using a dict literal and a dict constructor?
Using PyCharm, I noticed it offers to convert a dict literal :
10 Answers
10
...
How to improve Netbeans performance?
...
Very simple solution to the problem when your NetBeans or Eclipse IDE seems to be using too much memory:
Disable the plugins you are not using.
close the projects you are not working on.
I was facing similar problem with Netbean...
Compiler Ambiguous invom>cat m>ion error - anonymous method and method group with Func or Action
I have a scenario where I want to use method group syntax rather than anonymous methods (or lambda syntax) for calling a function.
...
Bulk Insertion in Laravel using eloquent ORM
How can we perform bulk database insertions in Laravel using Eloquent ORM?
11 Answers
...
Fixed stroke width in SVG
I would like to be able to set the stroke-width on an SVG element to be "pixel-aware", that is always be 1px wide regardless of the current scaling transformations applied. I am aware that this may well be impossible, since the whole point of SVG is to be pixel independent.
...
AttributeError: 'datetime' module has no attribute 'strptime'
Here is my Transaction class:
3 Answers
3
...