output

问题 This question already has answers here : Can a local variable's memory be accessed outside its scope? (20 answers) Closed 5 years ago . char *getString() { char str[] = "Will I be printed?"; return str; } int main() { printf("%s", getString()); getchar(); } Shouldn't the output be "Will I be printed?" ? Instead, the output is coming out to be some garbage value. Why is it so? 回答1: char str[] = "Will I be printed?"; is a local declaration. It is limited with in the function getString() . when

问题 I am a beginner of fortran90. Now I am trying to learn fortran code and I am not clear with the description of the write format write ( *, '(2x,i4,2x,g14.6,2x,14x,2x,g14.6)' ) 0, unew_norm, error Can anybody explain to me what does '(2x,i4,2x,g14.6,2x,14x,2x,g14.6)' stuff mean. It would be very nice to teach me the dummy things. Best 回答1: From this source: nX means that n spaces are added to the line; iw means that an integer (hence the i ) is printed in a field w spaces wide; gw.p is a

问题 While inside a module A I'm trying to use the output of a module B as the input of another module C. Essentially this is a "go" switch that is flipped in module B after certain conditions are met and then this is supposed to be the trigger for module C to activate. Is it possible to link an output and input like this? I've been reading around and found this image particularly helpful - however, I don't quite understand the concept of nets or if they will be helpful. Would wiring the output of

问题 What kind of methods exists in linux for low level disk operations in C++? I am attempting to write my own manager of data on a disk. For example, I would like to create a C++ program in the Linux environment that allocated a certain amount (continuous) on a disk and then freely allows me to read/write to that chunk of data. I don't think I want to use the standard fstream::open because then the file is managed by the OS and I might not get a continuous section on the disk. Thanks. 回答1:

问题 This question already has answers here : How to PlaySound in C++ using Windows API? (8 answers) Closed 5 years ago . 1 - I just want to simply play a .wav audio file in c++ program. I do NOT want make complex things with audio file...like recording or something else...just play it. Is it possible without using specifics audio libraries?? For example, Windows.h.Does it work with simple function or not?? 2 - Is it possible to play audio files in console? 回答1: You can use PlaySound to play a

问题 I have to display a table for detecting multiples for 2 numbers. I'm having trouble formatting my output. The multiples should be printed left-aligned in columns 8 characters wide, 5 multiples per line. I know it should be simple but i cant figure out how to display 5 multiples per line. can anyone help? public class Multiples_Loop_Table { public static void main(String[] args) { int total = 0; //table heading System.out.println(" Integers from 300 to 200"); System.out.println(" -------------

问题 I have data by group_id (1,2,3 and so on). I have to run a t test by group_id . Below I am providing the code I think I will be using for each group_id . How can I modify it so that I can loop over group_ids and get an output with all the t tests combined? Will appreciate any help. Thanks. ttest return, by(test_indicator) unequal 回答1: The by prefix can repeat the t-test for each group_id , but it is hard to combine with other codes. Here's a quick example of using levelsof and foreach to loop

问题 I am trying to create an "initial" text file that will hold a script run of all users + department + direct reports. My next step after making this file is to create another file the same way but compare it to the original to see if the department for the users ever changed. (not sure yet how to compare the department value just yet) My current issue is that the department, even though the process is identical to another program I have made in the past, won't print it. Furthermore, when it

问题 I've given a simple example below. Does anyone know what I have to do to output the string into two columns. My searching has not returned much in the way of formatting outputs into CSV. Please point me in the right direction! Thanks!!! $LogFile = c:\somefile.csv "Hello World" | Out-File $LogFile 回答1: Reading your comments which supplement your question, creating a PSObject around the variables you are trying to export to CSV might give you more control over your output. Consider the

问题 I currently have the following script that works well for gathering a list of installed programs from a list of remote computers. $PCListOld = Get-Content F:\PCList-Old.txt ForEach ($PC in $PCListOld) { $AppList = Get-WmiObject -Computer $PC Win32_Product | Sort-Object Name $AppList | Export-CSV C:\~Scripts\AppLists\$PC.csv } However, I really only need the Name property in $AppList, but if I simply pipe $AppList.Name to Export-CSV, I don't get the same output in the csv as I would have on