大约有 16,800 项符合查询结果（耗时：0.0269秒） [XML]
How to check whether a file is empty or not?
I have a text file.
How can I check whether it's empty or not?
10 Answers
10
...
How to add http:// if it doesn't exist in the URL?
How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answe...
How to use sed to remove the last n lines of a file
I want to remove some n lines from the end of a file. Can this be done using sed?
22 Answers
...
How can I add a class to a DOM element in JavaScript?
How do I add a class for the div ?
10 Answers
10
...
MySQL: selecting rows where a column is null
I'm having a problem where when I try to select the rows that have a NULL for a certain column, it returns an empty set. However, when I look at the table in phpMyAdmin, it says null for most of the rows.
...
Django development IDE [closed]
I have done a little Django development, but it has all been in a text editor. I was curious what more advanced development tools others are using in their Django development.
...
Parse query string into an array
How can I turn a string below into an array ?
10 Answers
10
...
What is the easiest way to get the current day of the week in Android?
What would be the easiest way to get the current day of the week in Android?
11 Answers
...
How to escape apostrophe (') in MySql?
The MySQL documentation says that it should be \' . However, both scite and mysql shows that '' works. I saw that and it works. What should I do?
...
Is Tomcat running?
Interested to know how people usually check to see if Tomcat is running on a Unix environment.
17 Answers
...