React setState problem

this.state = {
    form:{
        item1:{
            key1:"1",
            key2:"2"
        }
    },
    form2:{
        item2:{...}
    }
}

react, only updates the value of form.item1.key1, how to setState?

this.state = {
    form:{
        item1:{
            key1:"3",
            key2:"2"
        }
    },
    form2:{
        item2:{...}
    }
}
Nov.23,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3e058-2bb59.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3e058-2bb59.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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