【入门夯实】守卫子句：先拒后行的早返回写法

local function joinRaid(actor)
    if actor then
        local lv = tonumber(getplayvar(actor, 0, "Level")) or 0
        if lv >= 60 then
            local gx = tonumber(getplayvar(actor, 1, "GongXian")) or 0
            if gx >= 1000 then
                print("进本逻辑")
            end
        end
    end
end

local function joinRaid(actor)
    if not actor then
        return
    end
    local lv = tonumber(getplayvar(actor, 0, "Level")) or 0
    if lv < 60 then
        print("等级不足")
        return
    end
    local gx = tonumber(getplayvar(actor, 1, "GongXian")) or 0
    if gx < 1000 then
        print("帮贡不足")
        return
    end
    print("进本逻辑")
end

local function checkJoin(actor)
    if not actor then
        return false, "无效对象"
    end
    return true, "通过"
end
local ok, reason = checkJoin(nil)
print(ok, reason)