how to extract a variable as parameter which has index using by a for loop?

[Ben Finney]

meInvent bbird <jobmattcon at gmail.com> writes:

> it is not convenient to disclose in detail
> just expect to discuss from the view of programming

It is not convenient to discuss programming without a good understanding
of what the program is meant to do.

(Also, please don't top-post, instead post your responses interleaved
<URL:https://en.wikipedia.org/wiki/Posting_style#Interleaved_style>.)

-- 
 \         “The most dangerous man to any government is the man who is |
  `\       able to think things out for himself, without regard to the |
_o__)          prevailing superstitions and taboos.” —Henry L. Mencken |
Ben Finney