【入门夯实】双层寻宝：break只跳一层循环的退出层级

local function findPill(grid)
    for r = 1, 5 do
        for c = 1, 8 do
            if grid[r][c] == "祝福油" then
                break
            end
        end
    end
    return nil
end

local function findPill(grid)
    for r = 1, 5 do
        for c = 1, 8 do
            if grid[r][c] == "祝福油" then
                return r, c
            end
        end
    end
    return nil
end
local function consumePill(actor, grid)
    actor = getplayerbyname(actor)
    local r, c = findPill(grid)
    if r == nil then
        sendmsg(actor, 1, "仓库格里没有祝福油。")
        return
    end
    grid[r][c] = ""
    sendmsg(actor, 1, "已取用祝福油，位置 " .. r .. "-" .. c .. "。")
end

local function locateSword(grid)
    local hitR, hitC
    for r = 1, 5 do
        local done = false
        for c = 1, 8 do
            if grid[r][c] == "裁决之杖" then
                hitR, hitC = r, c
                done = true
                break
            end
        end
        if done then
            break
        end
    end
    return hitR, hitC
end