大约有 40,000 项符合查询结果（耗时：0.0306秒） [XML]
Converting A String To Hexadecimal In Java
...
This method is actually the correct one. Try byte[] data = { -1, 1 }; -- code in this answer works fine, whereas that with 17 upvotes fails.
– hudolejev
Mar 1 '12 at 23:36
...
vs
...global namespace anyway, and C++11 ratified this practice[*]. So, you basically have three options:
Use <cstdint> and either fully qualify each integer type you use or else bring it into scope with using std::int32_t; etc (annoying because verbose, but it's the right way to do it just like f...
Save the console.log in Chrome to a file
...the flags:
--enable-logging --v=1
This logs everything Chrome does internally, but it also logs all the console.log() messages as well. The log file is called chrome_debug.log and is located in the User Data Directory.
Filter the log file you get for lines with CONSOLE(\d+).
Note that console l...
How do I run a program with a different working directory from current, from Linux shell?
...
Call the program like this:
(cd /c; /a/helloworld)
The parentheses cause a sub-shell to be spawned. This sub-shell then changes its working directory to /c, then executes helloworld from /a. After the program exits, the sub...
How to force a line break in a long word in a DIV?
Okay, this is really confusing me. I have some content inside of a div like so:
16 Answers
...
How can I add numbers in a Bash script?
...ntax
Using the external expr utility. Note that this is only needed for really old systems.
num=`expr $num1 + $num2` # Whitespace for expr is important
For floating point:
Bash doesn't directly support this, but there are a couple of external tools you can use:
num=$(awk "BEGIN {print $...
What is the difference between Type and Class?
...primitives are classes (or more exactly structs).
– dalle
Jan 22 '09 at 7:10
4
@dalle: agreed, th...
How do I drop a MongoDB database from the command line?
...ul in my case. Somehow I had a database named "mean-dev" from an older installation, and entering "mean-dev.dropDatabase()" in the mongo shell resulted in "ReferenceError: mean is not defined". But using the solution in this answer did the trick. +1
– K. P. MacGregor
...
Read a file one line at a time in node.js?
...fDelay: Infinity
});
// Note: we use the crlfDelay option to recognize all instances of CR LF
// ('\r\n') in input.txt as a single line break.
for await (const line of rl) {
// Each line in input.txt will be successively available here as `line`.
console.log(`Line from file: ${line}...
Generate GUID in MySQL for existing Data?
...ch of data to a MySQL table and I have a column "GUID" that I want to basically fill down all existing rows with new and unique random GUID's.
...