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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...3
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mg...
:: (double colon) operator in Java 8
...rk? The java compiler "detects", that you want to implement a method that accepts two ints and returns one int. This is equivalent to the formal parameters of the one and only method of interface IntBinaryOperator (the parameter of method reduce you want to call). So the compiler does the rest for y...
Get a random item from a JavaScript array [duplicate]
...ound is not a valid substitution for Math.floor. Using round would cause accidentally referencing an undefined index, say in the case Math.random() is 0.95 and items.length is 5. Math.round(0.95*5) is 5, which would be an invalid index. floor(random) will always be zero in your example.
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Swift - encode URL
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Swift 3:
let originalString = "http://www.ihtc.cc?name=htc&title=iOS开发工程师"
1. encodingQuery:
let escapedString = originalString.addingPercentEncoding(withAllowedCharacters:NSCharacterSet.urlQueryAllowed)
result:
"http://www.ihtc.cc?name=htc&title=i...
`find -name` pattern that matches multiple patterns
... @StephaneEybert: either is fine, but only the latter is POSIX compliant (according to the man page).
– Stephan202
Sep 6 '14 at 14:33
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show...
Bare asterisk in function arguments?
... Note that all positional (unnamed) arguments, including *args, must occur before the bare *.
– BallpointBen
Jun 9 '17 at 19:48
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What is a non-capturing group in regular expressions?
...estions/tagged/regex
Now, if I apply the regex below over it...
(https?|ftp)://([^/\r\n]+)(/[^\r\n]*)?
... I would get the following result:
Match "http://stackoverflow.com/"
Group 1: "http"
Group 2: "stackoverflow.com"
Group 3: "/"
Match "https://stackoverflow.com/questions/ta...
How to make clang compile to llvm IR
...passed to the compiler front-end directly, and not the driver by means of -cc1:
> clang -cc1 foo.c -emit-llvm
Produces foo.ll with the IR. -cc1 adds some cool options like -ast-print. Check out -cc1 --help for more details.
To compile LLVM IR further to assembly, use the llc tool:
> llc...
How do I get the color from a hexadecimal color code using .NET?
...
Assuming you mean the HTML type RGB codes (called Hex codes, such as #FFCC66), use the ColorTranslator class:
System.Drawing.Color col = System.Drawing.ColorTranslator.FromHtml("#FFCC66");
If, however you are using an ARGB hex code, you can use the ColorConverter class from the System.Windows....
Is there a way to make npm install (the command) to work behind proxy?
...ssword@$proxy"
export all_proxy="http://$username:$password@$proxy"
export ftp_proxy="http://$username:$password@$proxy"
export dns_proxy="http://$username:$password@$proxy"
export rsync_proxy="http://$username:$password@$proxy"
export no_proxy="127.0.0.10/8, localhost, 10.0.0.0/8, 172.16.0.0/12, 19...