我有以下 TOML 文件結(jié)構(gòu)：[database]host = "localhost"port = 8086https = trueusername = "root"password = "root"db = "test"[cloud]deviceType = "2be386e9bbae"deviceId = "119a705fa3b1"password = "test"token = "dqpx5vNLLTR34"endpoint = "mqtts://mqtt1.endpoint.com"[gps]#measurement = "gps" [gps.msgpack] topic = "/evt/gps/msgpack" [gps.json] topic = "/evt/gps/json"[imu]#measurement = "imu" [imu.1] tag = "NODE1" topic = "/evt/imu1/msgpack" [imu.2] tag = "NODE2" topic = "/evt/imu2/msgpack"我只想在表和表中設(shè)置一次measurement鍵，而不是在and和 for and中冗余設(shè)置gpsimumsgpackjson12使用注釋掉的鍵以下代碼有效
1 回答
holdtom
TA貢獻(xiàn)1805條經(jīng)驗(yàn) 獲得超10個贊
你說：
我想在 gps 表中設(shè)置測量鍵并且只可變一次而不是在 msgpack 和 json 以及 1 和 2 中冗余
你不這樣做是因?yàn)?TOML 格式的創(chuàng)建者說：
因?yàn)槲覀冃枰环N體面的人類可讀格式，它可以明確地映射到哈希表，而 YAML 規(guī)范長達(dá) 80 頁，這讓我很生氣。不，JSON 不算數(shù)。你知道為什么。
如果您需要對一個鍵具有相同的值，例如，measurement您必須在每個子表中指定您想要的
您正確的 TOML 文件：
[database]
host = "localhost"
port = 8086
https = true
username = "root"
password = "root"
db = "test"
[cloud]
deviceType = "2be386e9bbae"
deviceId = "119a705fa3b1"
password = "test"
token = "dqpx5vNLLTR34"
endpoint = "mqtts://mqtt1.endpoint.com"
[gps]
[gps.msgpack]
topic = "/evt/gps/msgpack"
measurement = "gps"
[gps.json]
topic = "/evt/gps/json"
measurement = "gps"
[imu]
[imu.1]
measurement = "imu"
tag = "NODE1"
topic = "/evt/imu1/msgpack"
[imu.2]
measurement = "imu"
tag = "NODE2"
topic = "/evt/imu2/msgpack"
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