如何编写代码用文件中的逗号替换空格

问题描述

  
  
 s  =   arun 36985;   
  
 s  =〜s / /，/;   print   
  
arun 36985
arrunav 25871
elarital 48734
depaal 43212
sujan 23467
 my data is in this form i need to replace space with comma in perl script than how can i write the code for the above data 
 
my data out put should be  arun,36985
                           arrunav,25871  
                           elarital,48734
                           depaal,43212 
                           sujan,23467
 解决方案 
See, for instance, here: SEARCH & REPLACE[^]. 
e.g.
s = "arun 36985";
s =~ s/ /,/;
print