Ruby:字符从字符串转换为ASCII [英] Ruby: character to ascii from a string

问题描述

此Wiki页面给出了有关如何将单个字符转换为ascii的一般概念. http://zh.wikibooks.org/wiki/Ruby_Programming/ASCII

this wiki page gave a general idea of how to convert a single char to ascii http://en.wikibooks.org/wiki/Ruby_Programming/ASCII

但是说，如果我有一个字符串，并且想从中获取每个字符的ascii，我该怎么办?

But say if I have a string and I wanted to get each character's ascii from it, what do i need to do?

"string".each_byte do |c|
      $char = c.chr
      $ascii = ?char
      puts $ascii
end

它不起作用，因为它对$ ascii =?char

It doesn't work because it's not happy with the line $ascii = ?char

syntax error, unexpected '?'
      $ascii = ?char
                ^

推荐答案

c变量已包含字符代码！

The c variable already contains the char code!

"string".each_byte do |c|
    puts c
end

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