大约有 40,000 项符合查询结果（耗时：0.0330秒） [XML]
socket.error: [Errno 48] Address already in use
...
I am new to Python, but after my brief research I found out that this is typical of sockets being binded. It just so happens that the socket is still being used and you may have to wait to use it. Or, you can just add:
tcpSocket....
What requirement was the tuple designed to solve?
I'm looking at the new C# feature of tuples. I'm curious, what problem was the tuple designed to solve?
13 Answers
...
Using CSS to affect div style inside iframe
Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
13 Answers
...
Find the index of a dict within a list, by matching the dict's value
... name (using a dictionary), this way get operations would be O(1) time. An idea:
def build_dict(seq, key):
return dict((d[key], dict(d, index=index)) for (index, d) in enumerate(seq))
info_by_name = build_dict(lst, key="name")
tom_info = info_by_name.get("Tom")
# {'index': 1, 'id': '2345', 'na...
What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
...s associated.
So, if you use the second query, you will not need to do a new query to hit the database again to see the Departments of each Employee.
You can use the second query when you are sure that you will need the Department of each Employee. If you not need the Department, use the first qu...
Running script upon login mac [closed]
...rt Automator.app
select Application
click Show library in the toolbar (if hidden)
add Run shell script (from the Actions/Utilities)
copy & paste your script into the window
test it
save somewhere (for example you can make an Applications folder in your HOME, you will get an your_name.app)
go to...
PHP foreach change original array values
I am very new in multi dimensional arrays, and this is bugging me big time.
5 Answers
...
Compare equality between two objects in NUnit
...void AreEqualByJson(object expected, object actual)
{
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
var expectedJson = serializer.Serialize(expected);
var actualJson = serializer.Serialize(actual);
Assert.AreEqual(expectedJson, actualJson);
}
It seems ...
How to add new line into txt file
I'd like to add new line with text to my date.txt file, but instead of adding it into existing date.txt, app is creating new date.txt file..
...
T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...
You didn't say what version you were using, but in SQL 2005 and above, you can use a common table expression with the OVER Clause. It goes a little something like this:
WITH cte AS (
SELECT[foo], [bar],
row_number() OVER...