conditional

问题 I have a GNU Makefile (version 3.81) that looks like the following: .PHONY: SPOneDot SPOneDot: ifndef X X=0.05 $$(info X undefined, changed to $X) endif ifndef Y Y=0.05 $$(info Y undefined, changed to $Y) endif python ./Submit3DSP.py -f OneDot.qdt -x $(X) -y $(Y) I execute with the following command line: make X=0.1 Y=0.1 SPOneDot but I get the following result: ifndef X make: ifndef: Command not found make: *** [SPOneDot] Error 127 I've looked in the makefile documentation and seen others

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 2 years ago . Improve this question I am currently trying to figure out how to initialize variables based on conditions. So this is the current code that I want to modify: int dimsOut[4]; dimsOut[0] = data->nDataVar(); dimsOut[1] = dims[0]; dimsOut[2] = dims[1]; dimsOut[3] = dims[2]; const size_t dataSize = data

问题 echo '<table style="width:100%"> <tr>'; echo '<td>Order</td>'; echo '<td>Destination</td>'; echo '<td>Location</td>'; echo '<td>Status</td>'; echo '<td>TimeStamp</td>'; echo '</tr>'; if($result) { while($row = mysqli_fetch_assoc($result)) { echo '<tr><td>'; echo $row['OrderNumber'] . ''; echo '</td><td>'; echo $row['Destination'] . ''; echo '</td><td>'; echo $row['Location'] . ''; echo '</td><td>'; echo $row['Status'] . ''; echo '</td><td>'; echo $row['TimeStamp'] . ''; echo '</td></tr>'; }

问题 I'm working with this JS plugin, and I've encountered some syntax I've never seen before. I understand what it's doing, but I'm not sure why it works. Here's an example of one instance of it: settings.maxId != null && (params.max_id = settings.maxId); Is this just taking advantage of conditionals and the single = ? Is this common syntax for JS? 回答1: In JavaScript the = operator is an expression and evaluates the assigned value. Because it is an expression it can be used anywhere an expression

问题 I'm working with this JS plugin, and I've encountered some syntax I've never seen before. I understand what it's doing, but I'm not sure why it works. Here's an example of one instance of it: settings.maxId != null && (params.max_id = settings.maxId); Is this just taking advantage of conditionals and the single = ? Is this common syntax for JS? 回答1: In JavaScript the = operator is an expression and evaluates the assigned value. Because it is an expression it can be used anywhere an expression

问题 I'm working with this JS plugin, and I've encountered some syntax I've never seen before. I understand what it's doing, but I'm not sure why it works. Here's an example of one instance of it: settings.maxId != null && (params.max_id = settings.maxId); Is this just taking advantage of conditionals and the single = ? Is this common syntax for JS? 回答1: In JavaScript the = operator is an expression and evaluates the assigned value. Because it is an expression it can be used anywhere an expression

问题 After using IDA Pro to disassemble a x86 dll, I found this code (Comments added by me in pusedo-c code. I hope they're correct): test ebx, ebx ; if (ebx == false) jz short loc_6385A34B ; Jump to 0x6385a34b mov eax, [ebx+84h] ; eax = *(ebx+0x84) mov ecx, [esi+84h] ; ecx = *(esi+0x84) mov al, [eax+30h] ; al = *(*(ebx+0x84)+0x30) xor al, [ecx+30h] ; al = al XOR *(*(esi+0x84)+0x30) jnz loc_6385A453 Lets make it simpler for me to understand: mov eax, b3h xor eax, d6h jnz ... How does the

问题 I want to know what I would need to type into the formula box in excel to solve the problem outline below: Key: *Variable/Cell* IF *cellnumber* = 0 shade cells red IF *cellnumber* > (more than) 0 but < (less than) *cell number* shade cells yellow IF *cellnumber = *cellnumber* shade cells green. 回答1: You want Conditional Formatting. Pre-Excel 2007 go to the Data menu and click conditional formatting. Excel 2007 or later go to the Home ribbon and click Conditional Formatting. Here is a guide to

问题 I would like to write conditional class in slim but I only know how to do it with 2 conditions, like : div class=(index == 0 ? 'class1' : 'class1 class3') How to do it with three conditions? - if index == 0 .class1 - elsif index == -1 .class2.class3 - else .class1.class3 回答1: div class=(if index == 0 then 'class1' elsif index == -1 then 'class2 class3' else '.class1 class3' end) 来源： https://stackoverflow.com/questions/40591084/conditional-class-in-slim-with-3-conditions

问题 I am trying to create widgets in Shiny by using for loop. each block contains: label check box choices selector Two numeric inputs I want to do condition for showing or hiding the two numeric inputs according to the value of the check box and the value of the choices selector. In the for loop that I created I added an index for each widget variable. I am wondering how can I execute the condition of the conditional panel in the for loop knowing that the variables are indexed in their names.