尝试以下代码:
function test(s)
local n=0
s=s..'\t'
for w in s:gmatch("(.-)\t") do
n=n+1
print(n,"["..w.."]")
end
end
test("10\t20\t30\t\t50")
test("100\t200\t300\t\t500\t")
它在字符串的末尾添加了一个制表符,以便所有字段都跟随一个制表符,甚至最后一个也是如此。
,
行和列分开:
local filename = "big_tables.tsv" -- tab separated values
-- local filename = "big_tables.csv" -- comma separated values
local lines = io.lines(filename) -- open file as lines
local tables = {} -- new table with columns and rows as tables[n_column][n_row]=value
for line in lines do -- row iterator
local i = 1 -- first column
for value in (string.gmatch(line,"[^%s]+")) do -- tab separated values
-- for value in (string.gmatch(line,'%d[%d.]*')) do -- comma separated values
tables[i]=tables[i]or{} -- if not column then create new one
tables[i][#tables[i]+1]=tonumber(value) -- adding row value
i=i+1 -- column iterator
end
end
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