大约有 2,290 项符合查询结果(耗时:0.0112秒) [XML]

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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?

... 123 OLD only use a reference Dependencies uses express, socket.io, node_redis and last but not l...
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PHP + MySQL transactions examples

...(mysql_error()); $query = "INSERT INTO employee (ssn,name,phone) values ('123-45-6789','Matt','1-800-555-1212')"; begin(); // transaction begins $result = mysql_query($query); if(!$result){ rollback(); // transaction rolls back echo "transaction rolled back"; exit; }else{ commit(...
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Putty: Getting Server refused our key Error

...tNumber = 22, HostName = "192.168.1.188", UserName = "user123", //Password = "Password1", SshHostKeyFingerprint = @"ssh-rsa 2048 qu0f........................ddowUUXA=" }; ops.SshPrivateKeyPath = @"C:\temp\rsa-key-20190505.ppk"; using (Session session = ...
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How do I return rows with a specific value first?

... For Postgres, this worked for me: ORDER BY id = 123 DESC, name ASC – user1032752 Oct 6 '16 at 21:27 add a comment  |  ...
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How to define two angular apps / modules in one page?

... 123 Only one AngularJS application can be auto-bootstrapped per HTML document. The first ngApp ...
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How to click first link in list of items after upgrading to Capybara 2.0?

... 123 Try the following: within ".item" do click_link("Agree", :match => :first) end Sources...
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What is resource-ref in web.xml used for?

...endor specific deployment descriptor file – abhihello123 Aug 1 '16 at 11:48 1 ...
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What is the correct way to document a **kwargs parameter?

...rgs argument, but a completely normal one. – bugmenot123 Jul 15 '19 at 12:26 add a comment  |  ...
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decimal vs double! - Which one should I use and when? [duplicate]

...ut at 1 million for a float. A 15 digit monetary value: £1,234,567,890,123.45 9 trillion with a double. But with division and comparisons it's more complicated (I'm definitely no expert in floating point and irrational numbers - see Marc's point). Mixing decimals and doubles causes issues: ...
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How do I show the value of a #define at compile-time?

...tring should be treated as if it were quoted. If it did then: #define ABC 123 int n = ABC; would not compile. Now consider: #define ABC abc #pragma message "The value of ABC is: " ABC which is equivalent to #pragma message "The value of ABC is: " abc This causes a preprocessor warning beca...