1.v-for循环，点击更改按钮样式，默认选中第一个

https://blog.csdn.net/weixin_41599291/article/details/92825484

2.多个class名，数组

https://www.cnblogs.com/sweeeper/p/11506726.html

<div v-bind:class="[{ active: isActive }, errorClass]"></div>

3.获取元素高度

https://blog.csdn.net/zqian1994/article/details/82732825

4.写样式对子组件是不生效

deep
https://blog.csdn.net/weixin_45910131/article/details/105723572

5.vue组件中添加scoped后某些样式不生效(子组件)

https://blog.csdn.net/qq_41800366/article/details/107062781

6.改变引用组件样式

在父组件加入特定class，style不加scoped

<style lang="scss">
.formatter-color {
    color: #28fff7;
}
#j-salary .center_box {
    width: 35% !important;
}
</style>

<style lang="scss" scoped>