把数据放在特定的标题中

headers = ["05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22"] 

data = ["05:01", "05:23", "05:43", "06:03", "06:33", "06:53", "07:03", "07:23", "07:46", "08:04", "08:24", "08:44", "09:14", "09:24", "09:44", "10:19", "10:39", "11:02", "11:22", "11:42", "12:12", "12:32", "12:52", "13:12", "13:32", "13:52", "14:12", "14:32", "14:42", "15:02", "15:32", "15:52", "16:12", "16:32", "16:52", "17:12", "17:32", "17:52", "18:12", "18:47", "19:23", "19:48", "20:28", "21:03", "21:33", "22:08", "22:40"]

我必须把特定的数据放到正确的标题中。例如把数据放在特定的标题中

05 06 

    05:01 06:03 
    05:23 06:33 
    05:43 06:53 

Rails 3.0.3 
Ruby 1.9.2 
Prawn 0.8.4

我该怎么做？

基本上我想要做这样的事情。

Prawn::Document.generate(path) do 
    table([['05','06']] + [['05:01','06:03'],['05:23','06:33'],['05:43','06:53']], :header => true) do 
    end 
end

来源

2011-03-04 Lewy

mapped_headers = headers.map do |header| 
    data_array = data.select {|d| header == d[0,2]} 
    [header, data_array] 
end

此代码将使输出是这样的：

[["05", ["05:01", "05:23", "05:43"]], ["06", ["06:03", "06:33", "06:53"]], ["07", ["07:03", "07:23", "07:46"]], ["08", ["08:04", "08:24", "08:44"]], ["09", ["09:14", "09:24", "09:44"]], ["10", ["10:19", "10:39"]], ["11", ["11:02", "11:22", "11:42"]], ["12", ["12:12", "12:32", "12:52"]], ["13", ["13:12", "13:32", "13:52"]], ["14", ["14:12", "14:32", "14:42"]], ["15", ["15:02", "15:32", "15:52"]], ["16", ["16:12", "16:32", "16:52"]], ["17", ["17:12", "17:32", "17:52"]], ["18", ["18:12", "18:47"]], ["19", ["19:23", "19:48"]], ["20", ["20:28"]], ["21", ["21:03", "21:33"]], ["22", ["22:08", "22:40"]]]

您还可以通过编辑最后一行创建散列

{header => data_array}

你可以这样做

rows = 3 
datas = (0...rows).map do |row| 
    mapped_headers.map{|header| header[1][row]} 
end 
Prawn::Document.generate(path) do 
    table([headers] + datas, :header => true) do 
    end 
end

来源

2011-03-04 09:49:48 rubyprince

+1 acheive大虾要求我忽略了这一切“把”的时候，我以为他只是想将数据阵列分割成3 – 2011-03-04 09:57:06

你的做法是组好吧，只是把条件“header == d [0,2]”改为“！d.index（header）.nil？” – Ashish 2011-03-04 10:21:06

@ ashish..ur如果第二个字符串包含字符串中的任意位置，则答案将为真..例如：06：05将分组在05个组中。 – rubyprince 2011-03-04 10:24:25

如果你问有关如何将新的元素添加到阵列，方法push将做的工作：

headers.push "05" 
data.push "05:01"

来源

2011-03-04 09:41:25

把数据放在特定的标题中

回答

相关问题