计算长度 ~~~ function table_leng(t) local leng=0 for k, v in pairs(t) do leng=leng+1 end return leng; end function trim(s) return (string.gsub(s, "^%s*(.-)%s*$", "%1")) end 打印表 function print_r ( t ) local print_r_cache={} local function sub_print_r(t,indent) if (print_r_cache[tostring(t)]) then print(indent.."*"..tostring(t)) else print_r_cache[tostring(t)]=true if (type(t)=="table") then for pos,val in pairs(t) do if (type(val)=="table") then print(indent.."["..pos.."] => "..tostring(t).." {") sub_print_r(val,indent..string.rep(" ",string.len(pos)+8)) print(indent..string.rep(" ",string.len(pos)+6).."}") elseif (type(val)=="string") then print(indent.."["..pos..'] => "'..val..'"') else print(indent.."["..pos.."] => "..tostring(val)) end end else print(indent..tostring(t)) end end end if (type(t)=="table") then print(tostring(t).." {") sub_print_r(t," ") print("}") else sub_print_r(t," ") end print() end 去重复 function table_unique(t) local check = {}; local n = {}; for key , value in pairs(t) do if not check[value] then n[key] = value check[value] = value end end return n end ~~~