1.组件使用$attrs和$listeners传递参数时：

发现v-bind和v-on都不好用了，因为$attrs的本质就是父级传递过来的所有参数，试了试直接扩展attrs也就是这么写{...$attrs}并没效果，实际解决方案如下

v-bind = '$attrs'     => {...{attrs:this.\$attrs}}
v-on   = '$listeners' => {...{on:this.\$listeners}}

解决思路为，去看源码$attrs和$listeners的赋值过程，然后开始猜~

function updateChildComponent (
    vm,
    propsData,
    listeners,
    parentVnode,
    renderChildren
) {
    ...
    vm.$attrs = parentVnode.data.attrs || emptyObject;
    vm.$listeners = listeners || emptyObject;
    ...
}
...
updateChildComponent(
    child,
    options.propsData, 
    options.listeners,
    vnode, 
    options.children
);
...
this.listeners = data.on || emptyObject;

2.组件使用.sync语法糖传递参数时（比如element的el-dialog组件会使用:visible.sync="dialogVisible"

// template的sync语法糖:
<el-dialog title="提示" :visible.sync="dialogVisible" width="30%">
      <span>内容</span>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="confirmUnbind">确 定</el-button>
      </span>
</el-dialog>

// template非语法糖
<el-dialog title="提示" :visible="dialogVisible" @update:visible = "val => this.dialogVisible = val"  width="30%">

// JSX 这么写
<el-dialog title="提示" visible={this.dialogVisible} {...{on:{'update:visible': val => this.dialogVisible = val}}} width="30%">
    <span>内容</span>
    <span slot="footer" class="dialog-footer">
        <el-button onClick={()=>...}>取 消</el-button>
        <el-button type="primary" onClick={xxx函数名}>确 定</el-button>
    </span>
</el-dialog>