大约有 46,000 项符合查询结果（耗时：0.0541秒） [XML]
How does the bitwise complement operator (~ tilde) work?
...representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative.
So let's take a look at how we get ~2 = -3:
Here's ...
How to use random in BATCH script?
How to use random in BATCH script?
14 Answers
14
...
Convert SQLITE SQL dump file to POSTGRESQL
...n POSTGRESQL. I just updated my local database with a huge amount of data and need to transfer a specific table to the production database.
...
What is the maximum characters for the NVARCHAR(MAX)?
...tes per character, that's approx. 1 billion characters.
Leo Tolstoj's War and Peace is a 1'440 page book, containing about 600'000 words - so that might be 6 million characters - well rounded up. So you could stick about 166 copies of the entire War and Peace book into each NVARCHAR(MAX) column.
I...
Downloading a large file using curl
... As @SashaChedygov has pointed out above, you don't need to use fwrite AND CURLOPT_FILE. Passing the $fp is enough. I did both and ended up with 1 at the end of content in the file.
– paperclip
Jan 30 '13 at 21:00
...
Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
... table could be
automatically initialized or updated to the current date and time.
This restriction has been lifted. Any TIMESTAMP column definition can
have any combination of DEFAULT CURRENT_TIMESTAMP and ON UPDATE
CURRENT_TIMESTAMP clauses. In addition, these clauses now can be used
wit...
How to remove globally a package from Composer?
I ran this command to install globally PHPUnit :
2 Answers
2
...
'Best' practice for restful POST response
So nothing new here I am just trying to get some clarification and cannot seem to find any in other posts.
2 Answers
...
Xcode 4 - “Archive” is greyed out?
...sable the Archive button. Run through the checks that would cause an error and then display an alert. I bet 9/10 it's the simulator. "You may not archive a build for the simulator. Select iOS Device and Archive again."
– Harry Love
Mar 30 '13 at 4:35
...
Multiple commands in gdb separated by some sort of delimiter ';'?
I am trying to execute two commands at once in gdb:
6 Answers
6
...