2008年12月11日 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.

2009年2月7日 · The above makes it sound as though a == comparison wouldn't check all the things in the first bullet point, "the same sequence of characters, same length, and same characters in corresponding positions" but in fact it does.

2008年8月29日 · Good question. These two operators work the same in PHP and C#. | is a bitwise OR. It will compare two values by their bits.

2017年7月25日 · 应该用在什么场合呢？比如表示并列的词有两个、三个的时候，哪种情况可以用？具体用法又是怎样？

2012年7月23日 · It looks like you are missing one set of brackets: SELECT Store_Id , Paid_Out_Amount , Paid_Out_Comment , Paid_Out_Datetime , Update_UserName , Till_Number FROM Paid_Out_Tb WHERE Store_Id = 1929 AND Paid_Out_Datetime >= DATEADD(day, DATEDIFF(day, 0, GETDATE()) - 1, 0) AND Paid_Out_Datetime < DATEADD(day, …

2010年5月9日 · Very old question I know, but since this is what came up at the top of my search results, I'll go ahead and answer it with modern day CSS.

In CMD, '&&' means "execute command 1, and if it succeeds, execute command 2". I have used it for things like:

2016年3月22日 · 以上图片中的说法对不对？表达A、B、C（均为单词或短语）并列应该用A，B and C还是A，B，and C？

2009年9月4日 · What is the difference between the &amp; and &amp;&amp; logical operators in MATLAB?

2012年4月14日 · I know that the and and or expressions exist in python, but is there any and/or expression? Or some way to combine them in order to produce the same effect as a and/or expression?