lua 在表中打印特定的键/值对

Question

我有一个外部 lua 表，其结构如下:

sgeT = {
  [2535047] = {
  {
      ["account"] = "TG-MCB110105",
      ["exec"] = "/share/home/00288/tg455591/NAMD_2.8b3/NAMD_2.8b3_Linux-x86_64-MVAPICH-Intel-Ranger/namd2",
      ["execEpoch"] = 1305825864,
      ["execModify"] = "Thu May 19 12:24:24 2011",
      ["execType"] = "user:binary",
      ["jobID"] = "2535047",
      ["numCores"] = "128",
      ["numNodes"] = "8",
      pkgT = {
      },
      ["runTime"] = "65125",
      ["sha1"] = "e157dd510a7be4d775d6ceb271373ea24e7f9559",
      sizeT = {
         ["bss"] = "104552",
         ["data"] = "192168",
         ["text"] = "10650813",
      },
      ["startEpoch"] = "1335843433",
      ["startTime"] = "Mon Apr 30 22:37:13 2012",
      ["user"] = "guo",
      },
  },
  [2535094] = {
  {
     ["account"] = "TG-MCB110105",
     ["exec"] = "/share/home/00288/tg455591/NAMD_2.8b3/NAMD_2.8b3_Linux-x86_64-MVAPICH-Intel-Ranger/namd2",
     ["execEpoch"] = 1305825864,
     ["execModify"] = "Thu May 19 12:24:24 2011",
     ["execType"] = "user:binary",
     ["jobID"] = "2535094",
     ["numCores"] = "128",
     ["numNodes"] = "8",
     pkgT = {
     },
     ["runTime"] = "81635",
     ["sha1"] = "e157dd510a7be4d775d6ceb271373ea24e7f9559",
     sizeT = {
        ["bss"] = "104552",
        ["data"] = "192168",
        ["text"] = "10650813",
     },
     ["startEpoch"] = "1335823028",
     ["startTime"] = "Mon Apr 30 16:57:08 2012",
     ["user"] = "guo",
     },
  },

我正在尝试使用以下 lua 脚本打印 exec 键/值对，如下所示:

function DeepPrint (e)
   if type(e) == "table" then
       for k,v in pairs(e) do 
          if k == "exec" then
            print(k)
            DeepPrint(v)       
          end
       end
   else 
    print(e)
   end
 end


FileStr = "lariatData-sgeT-2012-05-01_2.lua"
Hnd, ErrStr = io.open(FileStr, "r")
if Hnd then
    dofile(FileStr)
    for Str in Hnd:lines() do       
        DeepPrint(sgeT)            
    end
Hnd.close()
else
    print(ErrStr, "\n")
end

理想情况下，我想打印数字索引和 exec 值，例如:

2535047 execVal

但是，当我运行代码时，没有任何返回。最初数字索引没有括在方括号中，但我添加了它们以使文件能够被读取。然而，鉴于它们不是连续的，我不能像数组一样遍历它们，但我相信这些数字索引可能是我的问题的根源。我不确定我的代码有什么问题，但它什么都不返回。任何人都可以推荐我如何修复代码以便我可以获得适当的键和值来返回？提前致谢!!!

Answer 1

由于您的表具有固定结构，您可以简单地使用语法糖 sgeT[key1][key2]访问 exec key 。

for i, v in pairs( sgeT ) do
  print( i, v[1].exec )
end