大约有 43,000 项符合查询结果(耗时:0.0348秒) [XML]

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Why use bzero over memset?

...lient/server in C. When initializing the structs, like sock_addr_in , or char buffers (that we used to send data back and forth between client and server) the professor instructed us to only use bzero and not memset to initialize them. He never explained why, and I'm curious if there is a val...
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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?

... They are immutable. You cannot change a character within a string with something like var myString = "abbdef"; myString[2] = 'c'. The string manipulation methods such as trim, slice return new strings. In the same way, if you have two references to the same string...
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XML attribute vs XML element

...as a > or < you XML document will break I think there are five ascii chars (>, <, &, ?,") that will kill it. If this special character was in an Element you can simply add some CDATA tags around this data. I would say, only use attributes when you 100% know what values are going t...
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Why prefer two's complement over sign-and-magnitude for signed numbers?

... Sir , if i write char a = 12 ; and unsigned char b = 12 , is the underlying bit patter same , what really happens ? – Suraj Jain Dec 28 '16 at 8:28 ...
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Java - sending HTTP parameters via POST method easily

...2=b&param3=c"; byte[] postData = urlParameters.getBytes( StandardCharsets.UTF_8 ); int postDataLength = postData.length; String request = "http://example.com/index.php"; URL url = new URL( request ); HttpURLConnection conn= (HttpURLConnection) url.openConnection(); ...
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Is String.Format as efficient as StringBuilder

...os)) { throw new IndexOutOfRangeException(); } fixed (char* chRef = &dest.m_firstChar) { fixed (char* chRef2 = &src.m_firstChar) { wstrcpy(chRef + destPos, chRef2, length); } } } So then: string what = "cat"; string inthehat...
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Is there an equivalent for var_dump (PHP) in Javascript?

...ts, add three to it and // use it to indent the out block by that many characters. This argument is // not intended to be used by any other than the recursive call. var indent_by = typeof arguments[3] === 'undefined' ? 0:arguments[3]+3; var do_boolean = function (v) { r...
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How to split one string into multiple strings separated by at least one space in bash shell?

...[*] [a] [*]. Only use it if you are 101% sure that there are no SHELL metacharacters in the splitted string! – Tino May 13 '15 at 10:03 4 ...
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Yes/No message box using QMessageBox

...lude <QApplication> #include <QMessageBox> int main(int argc, char **argv) { QApplication app{argc, argv}; while (QMessageBox::question(nullptr, qApp->translate("my_app", "Test"), qApp->translate("my_app", "...
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Android: install .apk programmatically [duplicate]

...my sdcard in download file. // So please Check in DDMS tab and Select your Emulator. //Toast.makeText(getApplicationContext(), "Download Complete on SD Card.!", Toast.LENGTH_SHORT).show(); //download the APK to sdcard then fire the Intent. } catc...