大约有 47,000 项符合查询结果（耗时：0.0732秒） [XML]
Why do indexes in XPath start with 1 and not 0?
Some colleagues and I were comparing past languages we had programmed in and were talking about our experience with VBScript with its odd features such as 1-based index instead of 0-based indexes like almost every other language has, the reasoning being that it was a language for users (e.g....
Alter MySQL table to add comments on columns
I have been checking the MySQL Documentation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
...
Get String in YYYYMMDD format from JS date object?
I'm trying to use JS to turn a date object into a string in YYYYMMDD format. Is there an easier way than concatenating Date.getYear() , Date.getMonth() , and Date.getDay() ?
...
Are lists thread-safe?
I notice that it is often suggested to use queues with multiple threads, instead of lists and .pop() . Is this because lists are not thread-safe, or for some other reason?
...
How to atomically delete keys matching a pattern using Redis
In my Redis DB I have a number of prefix:<numeric_id> hashes.
23 Answers
23
...
What is the zero for string?
The documentation says :
2 Answers
2
...
Read stream twice
How do you read the same inputstream twice? Is it possible to copy it somehow?
10 Answers
...
How to check if a file exists in Documents folder?
I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.
...
Get Element value with minidom with Python
I am creating a GUI frontend for the Eve Online API in Python.
9 Answers
9
...
Value of i for (i == -i && i != 0) to return true in Java
I have the following if condition.
6 Answers
6
...