【入门夯实】张三放了张三丰：相等与包含的语义差

local function inListBad(name)
    local list = "张三|李四|王五"
    return string.find(list, name, 1, true) ~= nil
end
inListBad("张三丰")

local function inList(name)
    local list = "张三|李四|王五"
    for item in string.gmatch(list, "[^|]+") do
        if item == name then
            return true
        end
    end
    return false
end
local function checkSignup(actor, name)
    actor = getplayerbyname(actor)
    if inList(name) then
        sendmsg(actor, 1, name .. " 已在祖玛远征名单中，无需重复报名。")
    else
        sendmsg(actor, 1, name .. " 尚未报名。")
    end
end

local function containsAny(msg, words)
    for _, w in ipairs(words) do
        if string.find(msg, w, 1, true) then
            return true
        end
    end
    return false
end