title: How to use instances of a module with instances' index?
body: <p>For example,</p>
  
  <p>module MM;</p>
  
  <p>MM mm[128]();</p>
  
  <p>I want to get mm[i].signle1,i from 0 to 120.
  but I cannot use "for", and I do not want to write 120 statments.</p>
  
  <p>what can I do? </p>