el-dropdown-item沒有自定義click事件, 兩個解決辦法:

• 使用原生click事件

@click.native = "logout"

• 使用菜單項的指令事件

<el-dropdown @command="handleCommand">

<el-dropdown-item command="logout">退出登錄</el-dropdown-item>

methods: {
    handleCommand(command) {
        if (command === 'logout') {
            this.logout()
        }
    }
}

不能在item里面直接用@click

<el-dropdown-item>
    <span @click="logout()">退出登錄</span>
</el-dropdown-item>

試試@click.native = "logout（）"

<el-dropdown @command="handleCommand">

<el-dropdown-item command="logout">退出登錄</el-dropdown-item>

methods: {
    handleCommand(command) {
        this[command]()
    },
    logout () {
        // ...
    }
}