The element check box group changes the value to true, through vue, but the page is not checked.

dynamically generate el-checkbox-group to change the el-checkbox v-model value through vue, but the value is changed but the page el-checkbox is not checked

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related codes 

<el-checkbox-group v-model="channel">
                            <li > <el-checkbox v-for="(item,index) in form.channel" :disabled="item.channelAs" :key="index"
                                :checked="item.channelModel" v-model="item.channelModel" :label="item.id" >{{item.channelModel}}</el-checkbox>
                            </li>
        </el-checkbox-group>
Vue.js element-ui
Apr.25,2021
Whether the

page is checked depends on whether the label in el-checkbox corresponds to the element value of v-model 's channel. If there is a specified value, it is selected, otherwise

is unchecked.

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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-64f5-1e44914-44ab3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e44914-44ab3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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