variables

How do I #define multiple values C / C++

╄→尐↘猪︶ㄣ 提交于 2021-01-25 20:41:26
问题 How would I define multiple values of the same type in an array using #define ? For instance, I would like #define DIGIT 0x30 | 0x31 | 0x32 | 0x33 | 0x34 | 0x35 | 0x36 | 0x37 | 0x38 | 0x39 #define QUOTE 0x22 | 0x27 ETC... 回答1: How would I define multiple values of the same type in an array using #define ? For instance, I would like #define DIGIT 0x30 | 0x31 | 0x32 | 0x33 | 0x34 | 0x35 | 0x36 | 0x37 | 0x38 | 0x39 #define QUOTE 0x22 | 0x27 Well, the term array in C and C++ refers to a number of

python: changing symbol variable and assign numerical value

最后都变了- 提交于 2021-01-24 07:25:46
问题 In order to calculate derivatives and other expressions I used the sympy package and said that T = sy.Symbol('T') now that I have calculated the right expression: E= -T**2*F_deriv_T(T,rho) where def F_deriv_rho(T,rho): ret = 0 for n in range(5): for m in range(4): inner= c[n,m]*g_rho_deriv_rho_np*g_T_np ret += inner return ret that looks like this: F_deriv_rho: [0.0 7.76971e-5*T 0.0001553942*T**2*rho T*(-5.14488e-5*log(rho) - 5.14488e-5)*log(T) + T*(1.22574e-5*log(rho)+1.22574e-5)*log(T) + T*

python: changing symbol variable and assign numerical value

霸气de小男生 提交于 2021-01-24 07:23:50
问题 In order to calculate derivatives and other expressions I used the sympy package and said that T = sy.Symbol('T') now that I have calculated the right expression: E= -T**2*F_deriv_T(T,rho) where def F_deriv_rho(T,rho): ret = 0 for n in range(5): for m in range(4): inner= c[n,m]*g_rho_deriv_rho_np*g_T_np ret += inner return ret that looks like this: F_deriv_rho: [0.0 7.76971e-5*T 0.0001553942*T**2*rho T*(-5.14488e-5*log(rho) - 5.14488e-5)*log(T) + T*(1.22574e-5*log(rho)+1.22574e-5)*log(T) + T*

How to pass a python variables to shell script in azure databricks notebookbles.?

百般思念 提交于 2021-01-23 04:57:59
问题 How to pass a python variables from %python cmd to shell script %sh,in azure databricks notebook..? 回答1: Per my experience, there are two workaround ways to pass a Python variable to Bash script for your current scenario. Here is my sample codes using Python3 in notebook. To pass little data via environment variable in the same shell session of Azure Databricks Notebook, as below. %python import os l = ['A', 'B', 'C', 'D'] os.environ['LIST'] = ' '.join(l) print(os.getenv('LIST')) %%bash for i

Powershell - using wildcards to search for filename

瘦欲@ 提交于 2021-01-22 04:58:25
问题 I am trying to make a PowerShell script that will search a folder for a filename that contains a certain file-mask. All files in the folder will have format like *yyyyMd*.txt . I have made a script: [String]$date = $(get-date -format yyyyMd) $date1 = $date.ToString Get-ChildItem C:\Users\pelam\Desktop\DOM | Where-Object {$_.Name -like '*$date1*'} But this does not seem to work.. Can anyone help? It seems the problem is that the date variable is not correct because when I hard code something

Velocity: Is a any way to check if variable is defined

不问归期 提交于 2021-01-21 06:16:50
问题 I want to include one template nested into others cont1 , cont2 , cont3 . And nested template should be hide one specific control for cont1 only. Before inclusion into cont1 I would like to assign value to some flag variable $hideMyControl . And inside nested template I would like to check if $hideMyControl is assigned value. How to perform such check? 回答1: You can do this using #if($!{$articleLeader}) // Perform your operation or the template part you want to show. #end For more info, see

Velocity: Is a any way to check if variable is defined

北城以北 提交于 2021-01-21 06:15:42
问题 I want to include one template nested into others cont1 , cont2 , cont3 . And nested template should be hide one specific control for cont1 only. Before inclusion into cont1 I would like to assign value to some flag variable $hideMyControl . And inside nested template I would like to check if $hideMyControl is assigned value. How to perform such check? 回答1: You can do this using #if($!{$articleLeader}) // Perform your operation or the template part you want to show. #end For more info, see

Singular or Plural setting to a variable. PHP

穿精又带淫゛_ 提交于 2021-01-20 20:38:47
问题 There are a lot of questions explaining how to echo a singular or plural variable, but none answer my question as to how one sets a variable to contain said singular or plural value. I would have thought it would work as follows: $bottom="You have favourited <strong>$count</strong> " . $count == 1 ? 'user':'users'; This however does not work. Can someone advise how I achieve the above? 回答1: This will solve your issue, thanks to mario and Ternary operator and string concatenation quirk?

Singular or Plural setting to a variable. PHP

允我心安 提交于 2021-01-20 20:37:32
问题 There are a lot of questions explaining how to echo a singular or plural variable, but none answer my question as to how one sets a variable to contain said singular or plural value. I would have thought it would work as follows: $bottom="You have favourited <strong>$count</strong> " . $count == 1 ? 'user':'users'; This however does not work. Can someone advise how I achieve the above? 回答1: This will solve your issue, thanks to mario and Ternary operator and string concatenation quirk?

printf a variable in C [closed]

瘦欲@ 提交于 2021-01-18 10:08:23
问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . #include <stdio.h> #include <stdlib.h> int main() { int x = 1; printf("please make a selection with your keyboard\n"); sleep(1); printf("1.\n"); char