1. Want to show "not yet" in the place where there is no data in the table, and find the empty-text, result in the document. What is the reason why it doesn"t work well?
1. Want to show "not yet" in the place where there is no data in the table, and find the empty-text, result in the document. What is the reason why it doesn"t work well?
you misunderstand the role of empty-text . empty-text is what is displayed when the table source data is empty. 
has this effect.
there are many ways to fulfill your requirements, such as this
<el-table-column>
<template slot-scope="{row}">
{{ row.name || '' }}
</template>
</el-table-column> thanks for inviting ~
look at the source code and you can see that you have misunderstood it. When data is empty, empty-text is displayed.
ElementUI table source code
<div
v-if="!data || data.length === 0"
class="el-table__empty-block"
ref="emptyBlock"
:style="{
width: bodyWidth
}">
<span class="el-table__empty-text">
<slot name="empty">{{ emptyText || t('el.table.emptyText') }}</slot>
</span>
</div>now there is a requirement that when loading data, there will be "no data for the time being", and then there will be a waiting process. Temporary solution:
<template slot="empty">
<div v-if="loading">
</div>
<div v-else>
</div>
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