[feature request] it is recommended that the El select multi select component add the full select function

[angrybird233]

Existing Component

是

Component Name

el-select

Description

建议el-select多选组件增加全选功能，有全选选项, 在很多需求场景下，如果选项很多，需要一个一个去勾选，操作有些不方便。 （It is recommended that the el-select multi-select component add the full-select function. There are full-select options. In many demand scenarios, if there are many options, you need to check them one by one, which is a bit inconvenient.）

[element-bot]

Translation of this issue:

Existing Component

yes

Component Name

El-select

Description

It is recommended that El select multi selection component add the function of all selection. There are all selection options. In many demand scenarios, if there are many options, you need to check one by one, which is inconvenient for operation.

（It is recommended that the el-select multi-select component add the full-select function. There are full-select options. In many demand scenarios, if there are many options, you need to check them one by one, which is a bit inconvenient.）

[marissagroves]

同求，咋回事. It's there a way to add select all, and cancel to multi-select?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.