循环一个表的数组

如何循环这个表的数组?

TASK_CONFIG = {
    [1] = {NAME = "1-a", COUNT = 10, REWARD = 1000},
    [2] = {NAME = "4-b", COUNT = 10, REWARD = 6000},
    [3] = {NAME = "3-a", COUNT = 15, REWARD = 2400},
}

我需要像这样的东西:

for each ITEM in TASK_CONFIG
    for each FIELD in ITEM
        -- do something
    next
next

这个想法是循环每个字段，例如:

循环每一行，并获取值 "name", "count", "reward"