【入门夯实】字符串分词：按分隔符切词的gmatch循环

local s = "  攻 沙巴 克  "
-- 手写循环找空格切词，连续空格切出空词

local s = "  攻 沙巴 克  "
for w in string.gmatch(s, "%S+") do
    print("[" .. w .. "]")
end

local function split(s, sep)
    local out = {}
    for part in string.gmatch(s, "([^" .. sep .. "]+)") do
        out[#out + 1] = part
    end
    return out
end
local parts = split("指令,参数一,参数二", ",")
print(#parts, parts[2])