大约有 40,000 项符合查询结果(耗时:0.0455秒) [XML]
How to overwrite existing files in batch?
...
im new to batch whats b/v/y stand for?
– Mal
Oct 29 '10 at 11:27
9
...
How can I get the last day of the month in C#? [duplicate]
...r way of doing it:
DateTime today = DateTime.Today;
DateTime endOfMonth = new DateTime(today.Year,
today.Month,
DateTime.DaysInMonth(today.Year,
today.Month));
...
Difference between mkdir() and mkdirs() in java for java.io.File [closed]
...eates the directory named by this abstract pathname.
Example:
File f = new File("non_existing_dir/someDir");
System.out.println(f.mkdir());
System.out.println(f.mkdirs());
will yield false for the first [and no dir will be created], and true for the second, and you will have created non_existi...
Get total size of file in bytes [duplicate]
...of weird things to get this in the past to get the size of a file. Wish I knew about this a long time ago!
– RESTfulGeoffrey
Jul 14 '18 at 7:08
add a comment
...
How to check postgres user and password? [closed]
...l not be able to find out the password he chose. However, you may create a new user or set a new password to the existing user.
Usually, you can login as the postgres user:
Open a Terminal and do sudo su postgres.
Now, after entering your admin password, you are able to launch psql and do
CREATE ...
How to go to a URL using jQuery? [duplicate]
...
any way to do it in a new tab?
– Deekor
Jan 17 '17 at 17:03
1
...
Finding all cycles in a directed graph
...lues to keep track of whether you visited a node before. If you run out of new nodes to go to (without hitting a node you have already been), then just backtrack and try a different branch.
The DFS is easy to implement if you have an adjacency list to represent the graph. For example adj[A] = {B,C}...
JavaScript - Get minutes between two dates
...
You may checkout this code:
var today = new Date();
var Christmas = new Date("2012-12-25");
var diffMs = (Christmas - today); // milliseconds between now & Christmas
var diffDays = Math.floor(diffMs / 86400000); // days
var diffHrs = Math.floor((diffMs % 86...
Delete a single record from Entity Framework?
...st, you can attach it to the context by its id.
Like this:
var employer = new Employ { Id = 1 };
ctx.Employ.Attach(employer);
ctx.Employ.Remove(employer);
ctx.SaveChanges();
Alternatively, you can set the attached entry's state to deleted :
var employer = new Employ { Id = 1 };
ctx.Entry(employe...
Java: function for arrays like PHP's join()?
...tarting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello", "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which will join arrays together to make a String.
For example:
StringUtil...