elm-server/config/TaskRewardConfig.lua

local root = {
    {
        rewardConfigId = 1,
        rate = 1,
        ranWeight = {0,20,1}
    },
    {
        rewardConfigId = 1,
        rate = 2,
        ranWeight = {20,50,2}
    },
    {
        rewardConfigId = 1,
        rate = 3,
        ranWeight = {50,80,5}
    }
}
return root