大约有 47,000 项符合查询结果(耗时:0.0388秒) [XML]
What is the optimal length for an email address in a database?
...acted portion of my query, reflecting the EMAIL_ADDRESS column data type and property:
8 Answers
...
Get nth character of a string in Swift programming language
...tion: Please see Leo Dabus' answer for a proper implementation for Swift 4 and Swift 5.
Swift 4 or later
The Substring type was introduced in Swift 4 to make substrings
faster and more efficient by sharing storage with the original string, so that's what the subscript functions should return.
Try...
When to use thread pool in C#? [closed]
I have been trying to learn multi-threaded programming in C# and I am confused about when it is best to use a thread pool vs. create my own threads. One book recommends using a thread pool for small tasks only (whatever that means), but I can't seem to find any real guidelines. What are some consid...
Stopwatch vs. using System.DateTime.Now for timing events [duplicate]
I wanted to track the performance of my code so I stored the start and end time using System.DateTime.Now . I took the difference between the two as the time my code to execute.
...
Most efficient way to prepend a value to an array
... Only one issue with this solution. Doesn't unshift() return its length, and not the array as in this answer? w3schools.com/jsref/jsref_unshift.asp
– iDVB
Mar 8 '15 at 5:36
...
Change the default editor for files opened in the terminal? (e.g. set it to TextEdit/Coda/Textmate)
...tions/TextEdit.app/Contents/MacOS/TextEdit"
or just type the following command into your Terminal:
echo "export EDITOR=\"/Applications/TextEdit.app/Contents/MacOS/TextEdit\"" >> ~/.bashrc
If you are using zsh, use ~/.zshrc instead of ~/.bashrc.
...
Recursively remove files
Does anyone have a solution to remove those pesky ._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server?
...
How to get past the login page with Wget?
...re the --post-data parameter is properly percent-encoded (especially ampersands!) or the request will probably fail. Also make sure that user and password are the correct keys; you can find out the correct keys by sleuthing the HTML of the login page (look into your browser’s “inspect element”...
How to convert a string with comma-delimited items to a list in Python?
... This is not an array, it is a list, Arrays represent basic values and behave very much like lists, except the type of objects stored in them is constrained.
– joaquin
Mar 22 '11 at 6:32
...
Process escape sequences in a string in Python
...
hands down, the best solution! btw, by docs it should be "string_escape" (with underscore) but for some reason accepts anything in the pattern 'string escape', 'string@escape" and whatnot... basically 'string\W+escape'
...
