如何使用 Ruby 读取 Excel 电子表格的内容? [英] How do I read the content of an Excel spreadsheet using Ruby?

问题描述

我正在尝试使用 Ruby 读取 Excel 电子表格文件，但它没有读取文件的内容.

I am trying to read an Excel spreadsheet file with Ruby, but it is not reading the content of the file.

这是我的脚本

book = Spreadsheet.open 'myexcel.xls';
sheet1 = book.worksheet 0
sheet1.each do |row|
  puts row.inspect ;
  puts row.format 2; 
  puts row[1]; 
  exit;
end

它给了我以下信息:

[DEPRECATED] By requiring 'parseexcel', 'parseexcel/parseexcel' and/or
             'parseexcel/parser' you are loading a Compatibility layer which
             provides a drop-in replacement for the ParseExcel library. This
             code makes the reading of Spreadsheet documents less efficient and
             will be removed in Spreadsheet version 1.0.0

#<Spreadsheet::Excel::Row:0xffffffdbc3e0d2 @worksheet=#<Spreadsheet::Excel::Worksheet:0xb79b8fe0> @outline_level=0 @idx=0 @hidden=false @height= @default_format= @formats= []>
#<Spreadsheet::Format:0xb79bc8ac>
nil

我需要获取文件的实际内容.我做错了什么?

I need to get the actual content of file. What am I doing wrong?

推荐答案

看起来像 row，其类是 Spreadsheet::Excel::Row 实际上是一个 ExcelRange 并且它要么包含 Enumerable，要么至少公开一些可枚举的行为，例如 #each.

It looks like row, whose class is Spreadsheet::Excel::Row is effectively an Excel Range and that it either includes Enumerable or at least exposes some enumerable behaviours, #each, for example.

所以你可以像这样重写你的脚本:

So you might rewrite your script something like this:

require 'spreadsheet'    
book = Spreadsheet.open('myexcel.xls')
sheet1 = book.worksheet('Sheet1') # can use an index or worksheet name
sheet1.each do |row|
  break if row[0].nil? # if first cell empty
  puts row.join(',') # looks like it calls "to_s" on each cell's Value
end

请注意，我已将参数括在括号中，这在当今通常是可取的，并删除了分号，除非您在一行上写多个语句(如果有的话，您应该很少这样做).

Note that I've parenthesised arguments, which is generally advisable these days, and removed the semi-colons, which are not necessary unless you're writing multiple statement on a line (which you should rarely - if ever - do).

这可能是较大脚本的后遗症，但我会指出，在给定 book 和 sheet1 变量的代码中，并不真正需要，而且Spreadsheet#open 需要一个块，因此更惯用的 Ruby 版本可能是这样的:

It's probably a hangover from a larger script, but I'll point out that in the code given the book and sheet1 variables aren't really needed, and that Spreadsheet#open takes a block, so a more idiomatic Ruby version might be something like this:

require 'spreadsheet'    
Spreadsheet.open('MyTestSheet.xls') do |book|
  book.worksheet('Sheet1').each do |row|
    break if row[0].nil?
    puts row.join(',')
  end
end

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