大约有 40,000 项符合查询结果(耗时:0.0535秒) [XML]

https://stackoverflow.com/ques... 

MySQL check if a table exists without throwing an exception

...PDO syntax for it, but this seems pretty straight-forward: $result = mysql_query("SHOW TABLES LIKE 'myTable'"); $tableExists = mysql_num_rows($result) > 0; share | improve this answer ...
https://stackoverflow.com/ques... 

How add context menu item to Windows Explorer for folders [closed]

... HKEY_CURRENT_USER\Software\Classes\*\shell if you are a normal user In all cases: add a new key under shell, naming it as you want to name the context menu item add a new key inside this key, named command (mandatory name) edit the default property in command to myprogrampath\path\path\executa...
https://stackoverflow.com/ques... 

How to pass json POST data to Web API method as an object?

... with the result :) }); Model binding works for some properties, but not all ! Why ? If you do not decorate the web api method parameter with [FromBody] attribute [HttpPost] public CreateUserViewModel Save(CreateUserViewModel m) { return m; } And send the model(raw javascript object, not i...
https://stackoverflow.com/ques... 

How to check for null in Twig?

... Notice: as Twig 2.x check for variable is equal to value like is_ sameas must be {% if var is same as(false) %} not {% if var is sameas(false) %} see Doc url => twig.symfony.com/doc/2.x/tests/sameas.html – ahmed hamdy Jul 15 '19 at 17:01 ...
https://stackoverflow.com/ques... 

Can you create nested WITH clauses for Common Table Expressions?

... Essentially the post means, that you can't do it, but it is not a big problem. – peterh - Reinstate Monica May 30 '17 at 14:40 ...
https://stackoverflow.com/ques... 

Reading specific lines only

... with linecache.getlin('some_file', 4) I get the 4th line, not the 5th. – Juan Dec 11 '14 at 18:14 ...
https://stackoverflow.com/ques... 

Get current time in milliseconds in Python?

...illis = int(round(time.time() * 1000)) print millis Quick'n'easy. Thanks all, sorry for the brain fart. For reuse: import time current_milli_time = lambda: int(round(time.time() * 1000)) Then: >>> current_milli_time() 1378761833768 ...
https://stackoverflow.com/ques... 

How to “grep” for a filename instead of the contents of a file?

...ts of the file). I will run this from the system's root directory, to find all those files that match the regular expression. ...
https://stackoverflow.com/ques... 

Swift - encode URL

...= "test/test" let escapedString = originalString.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed) print(escapedString!) Output: test%2Ftest Swift 1 In iOS 7 and above there is stringByAddingPercentEncodingWithAllowedCharacters var originalString = "test/test" var escapedString...
https://stackoverflow.com/ques... 

How to print register values in GDB?

... info registers shows all the registers; info registers eax shows just the register eax. The command can be abbreviated as i r share | improve th...