大约有 9,000 项符合查询结果(耗时:0.0324秒) [XML]

https://stackoverflow.com/ques... 

MySQL get row position in ORDER BY

... t.name FROM TABLE t WHERE t.name = 'Beta' ...will give ties the same value. IE: If there are two values at second place, they'll both have a position of 2 when the first query will give a position of 2 to one of them, and 3 to the other... ...
https://stackoverflow.com/ques... 

git returns http error 407 from proxy after CONNECT

...Needed to do it in git bash not DOS for me. I noticed DOS didn't anything! ie. check it by doing: git config --global -l – theQuestionMan Aug 13 '18 at 23:26 ...
https://stackoverflow.com/ques... 

What is the purpose of a question mark after a type (for example: int? myVariable)?

...ntain elements that may not be assigned a value. For example, a Boolean field in a database can store the values true or false, or it may be undefined. class NullableExample { static void Main() { int? num = null; // Is the HasValue property true? if (num.HasValue) ...
https://stackoverflow.com/ques... 

How can I convert a DateTime to the number of seconds since 1970?

I'm trying to convert a C# DateTime variable to Unix time, ie, the number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001. ...
https://stackoverflow.com/ques... 

How To Save Canvas As An Image With canvas.toDataURL()?

... Except in IE9 standards mode: "Some content or files on this webpage require a program that you don't have installed." Internet Explorer 8 and above only supports data URIs for images in CSS, <link>, and <img>: developer.mo...
https://stackoverflow.com/ques... 

Python locale error: unsupported locale setting

... You probably do not have any de_DE locale available. You can view a list of available locales with the locale -a command. For example, on my machine: $ locale -a C C.UTF-8 en_AG en_AG.utf8 en_AU.utf8 en_BW.utf8 en_CA.utf8 en_DK.utf8 en_GB.utf8 en_HK.utf8 en_IE.utf8 en_IN en_IN.utf8 en_...
https://stackoverflow.com/ques... 

Are the decimal places in a CSS width respected?

...eak down when you get to fractional pixels, but if your percentage values yield integer pixel value (e.g. 50.5% of 200px in the example) you'll get sensible, expected behaviour. Edit: I've updated the example to show what happens to fractional pixels (in Chrome the values are truncated, so 50, 50.5...
https://stackoverflow.com/ques... 

Is there a vr (vertical rule) in html?

I know there is a hr (horizontal rule) in html, but I don't believe there is a vr (vertical rule). Am I wrong and if not, why isn't there a vertical rule? ...
https://stackoverflow.com/ques... 

Not showing placeholder for input type=“date” field

I am doing a phonegap app. When I am trying type="date" input field as shown below, it shows date picker in iPhone as I expected but it doesn't show the placeholder I have given. I found the same issue here in SO, but no solution anywhere. ...
https://stackoverflow.com/ques... 

How to catch an Exception from a thread

...n the class, I start a new thread, in the main, it waits until the thread dies. At some moment, I throw a runtime exception from the thread, but I can't catch the exception thrown from the thread in the main class. ...