Lua元音统计：五个元音的集合计数

local function vowelTotal(s)
    local _, n = string.lower(s):gsub("[aeiou]", "")
    return n
end

local function vowelDetail(s)
    local t = {a = 0, e = 0, i = 0, o = 0, u = 0}
    for ch in string.lower(s):gmatch("[aeiou]") do
        t[ch] = t[ch] + 1
    end
    return t
end
local p = getplayerbyname("vowel01")
local t = vowelDetail("Engine And Lua")
sendmsg(p, 1, "a:" .. t.a .. " e:" .. t.e)