comparison

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . Coming from a Perl 5 background, what are the advantages of moving to Perl 6 or Python? Edit: If you downvoted this because you think

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . Coming from a Perl 5 background, what are the advantages of moving to Perl 6 or Python? Edit: If you downvoted this because you think

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . For those of you experienced in both Haskell and some flavor of Lisp, I'm curious how "pleasant" (to use a horrid term) it is to write

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 6 years ago . I am searching for a comparison of different continuous integration (CI) Servers (esp. focusing on .NET) and couldn't find any. Therefore I'd like to know what you think about the different solutions available, what are the pros and cons, what are the hosting requirements and

问题 I created a playing card object that has certain attributes of rank, suite and blackjack value. The blackjack value part keep getting a TypeError that says I can't compare between instances of list and int . I'm not sure how to resolve (how to/if I can compare just the index of the list and then give it the blackjack value based on its index)? Does the if/elif block belong within the bjValue() function or in the init () function? Here's my code: class Card: """playing card object where

问题 I have in cell p4 the date: 2014-01-01 (obtained via formula ( =(((O5/1000/60)/60)/24)+DATE(1970,1,1)) ) I have in cell b5 the date: 2014-01-01 (typed in) =(p4=b5) gives false =(p4>=b5) gives false How do I compare dates correctly in Excel? 回答1: You should be safe with chopping the parts up and reassembling them: =DATE(YEAR(P4),MONTH(P4),DAY(P4))=DATE(YEAR(B5),MONTH(B5),DAY(B5)) 回答2: Select the two date cells. Press CTRL+1 to show the format tab On the Number tab, in the Format list, click

问题 I wanted to implement JS function "Deep comparison" and encounter on one interesting feature. 1st case - var arrValuesObjA = [{ is: "an" }, 2]; var arrValuesObjB = [{ is: "an" }, 2]; console.log(Array.isArray(arrValuesObjA), arrValuesObjA); //true Array [ {…}, 2 ] // 0: Object { is: "an" } 1: 2 length: 2 console.log(Array.isArray(arrValuesObjB), arrValuesObjB); // true Array [ {…}, 2 ] // 0: Object { is: "an" } 1: 2 length: 2 for (let i = 0; i < arrValuesObjA.length; i++) { console.log

问题 I've been wondering about the performance improvements touted in Java SE 6 - is it in the compiler or the runtime? Put another way, would a Java 5 application compiled by JDK 6 see an improvement run under JSE 5 (indicating improved compiler optimization)? Would a Java 5 application compiled by JDK 5 see an improvement run under JSE 6 (indicating improved runtime optimization)? I've noticed that compiling under JDK 6 takes almost twice as long as it did under JDK 5 for the exact same codebase

问题 Why is in_array() sometimes behaving so strangely and returns such unexpected results? Let's have a look at a few examples: $arrayWithTrue = ['Andreas', 'Philipp', true]; $arrayWithNull = [1, 2, 3, null]; $arrayWithMinusOne = [-1]; var_dump(in_array('Gary', $arrayWithTrue)); // returns bool(true) var_dump(in_array(0, $arrayWithNull)); // returns bool(true) var_dump(in_array(true, $arrayWithMinusOne)); // returns bool(true) Huh? What's happening here!? (Some years ago I wondered about this, at

问题 I have a column in my table, it holds values such as 100012345. The column is varchar. Now I want to compare this to similiar values in a where: ... where myColumn > '100012345' for example. How could I do that? Thanks! 回答1: select * from your_table where cast(your_column as signed) = 100012345 回答2: Have you tried to do it normally, like this: ... where myColumn > 100012345 That should work! , mysql automatically casts a string to number when it's in the context of a number operation. In the