大约有 45,000 项符合查询结果（耗时：0.0612秒） [XML]
Static Indexers?
...tionManager;
}
public class ConfigurationManager
{
public object this[string value]
{
get => new object();
set => // set something
}
}
Now you can call Utilities.ConfigurationManager["someKey"] using indexer notation.
...
DBMS_OUTPUT.PUT_LINE not printing
... DBMS_OUTPUT.PUT_LINE('a.firstName' || 'a.lastName');
means to print the string as it is.. remove the quotes to get the values to be printed.So the correct syntax is
DBMS_OUTPUT.PUT_LINE(a.firstName || a.lastName);
shar...
Auto increment in phpmyadmin
...r table
Click on the pencil of the variable you want auto_increment
under "Extra" tab choose "auto_increment"
then go to "Operations" tab of your table
Under "Table options" -> auto_increment type -> 10000
share
...
How to get the CPU Usage in C#?
...nceCounter("Memory", "Available MBytes");
Consume like this:
public string getCurrentCpuUsage(){
return cpuCounter.NextValue()+"%";
}
public string getAvailableRAM(){
return ramCounter.NextValue()+"MB";
}
...
Adjust UILabel height to text
...ks for me.
Updated for Swift 4.0
import UIKit
func heightForView(text:String, font:UIFont, width:CGFloat) -> CGFloat{
let label:UILabel = UILabel(frame: CGRectMake(0, 0, width, CGFloat.greatestFiniteMagnitude))
label.numberOfLines = 0
label.lineBreakMode = NSLineBreakMode.byWordW...
Short form for Java if statement
...
Won't String cityName = city.getName(); throw a NullPointerException if city == null? I'd therefore say your middle solution is definitely the best (PS and I approve of the 'unnecessary' parentheses! People need to remember that 9...
How to allocate aligned memory only using the standard library?
...specialized things, like playing with graphics systems, they can need more stringent alignment than the rest of the system — hence questions and answers like this.)
The next step is to convert the void pointer to a char pointer; GCC notwithstanding, you are not supposed to do pointer arithmetic o...
How to use OpenSSL to encrypt/decrypt files?
...bove!
-K key
The actual key to use: this must be represented as a string
comprised only of hex digits. If only the key is specified, the
IV must additionally be specified using the -iv option. When
both a key and a password are specified, the key given with the
-K option wi...
How to round float numbers in javascript?
...
Convert a number to a string and then back again? That can't be fast.
– csl
Nov 9 '12 at 14:07
...
Git: How to remove file from historical commit?
...
You can use git-extras tool. The obliterate command completely remove a file from the repository, including past commits and tags.
https://github.com/tj/git-extras/blob/master/Commands.md
...