众多可能性之一:

$ jq --arg date $(date +"%r") '. + {date: $date}'

p.s. jq程序可以写为:

p.s. The jq program could be written as:

. + {$date}

p.p.s.与其不断询问使用jq是否有可能，您可能会发现花费更多的时间来更加熟悉jq.官方手册是一个很好的参考: https://stedolan.github.io/jq/manual/

p.p.s. Rather than continually asking whether something is possible using jq, you might find it a better investment of your time to become more familiar with jq. A good reference is the official manual: https://stedolan.github.io/jq/manual/