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  1. 日常提升知识点 日常提升知识点
    1
    新的一周又开始了,这周开始给自己定下许多目标,比如卸载游戏,专心学习;开始精致的猪猪男孩,保养自己;早睡早起,养好身体,周末开始多多找一些兼职,体验生活。
    2
        又废话一下,还是直接进入正题吧,说说上周的问题,就是被一个组件害死了,Cascader 级联选择器,看官方文档介绍,是不错的;可能对于我这种需要脑袋瓜子多转一会的人来说,无疑是天方夜谭。话不多说,来认识它。
    3
        当一个数据集合有清晰的层级结构时,可通过级联选择器逐级查看并选择。这是官方介绍,类似县市级联那种,有兴趣的人可以去官网了解一下,[element-ui级联选择器](http://element-cn.eleme.io/#/zh-CN/component/cascader)
    4
    这里重点介绍一下,动态加载提供的方法:本例的选项数据源在初始化时不包含城市数据。利用active-item-change事件,可以在用户点击某个省份时拉取该省份下的城市数据。此外,本例还展示了props属性的用法。![image.png](data:image/png;base64,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)
    5
    因为一般我们是向后台请求数据然后遍历上去的,所以这里我们使用foreach的遍历方法。实现的过程是这样,一开始是先初始获取小区的列表信息,拿到楼宇的id,这时要注意的是,我们要先把第一级的数据遍历上去,所以我们在官方提供的响应数据的方法写,就比如element.name=val,这里的val是官方的例子,可以自行改动;这样我们还可以拿到另外两个参数,一个是下标,另一个是楼宇的id,方便我们第二次请求;其实按照网上的话,是可以用vuex管理的,因为有些接口它是多用的,我们没必要在两三个页面上编写同一种请求方法;然后在第一次请求的时候建立一个空数组,和一个children,在它后push上去。因为是官方的方法,这里我们前面已经给它赋了值,直接请求取出来,就相当于el.children=res.data一样。
  2. 还是日常程序鱼的三分钟记忆 还是日常程序鱼的三分钟记忆
    1
       回顾之前写的代码,看一下,我草,这是谁写如此优美的代码(不就是我吗?o(*^@^*)o),再仔细看看。嗯....,好吧,这句是什么意思,我好像忘记它是谁了
    2
    ```
    3
                    <el-dropdown-item @click.native="logout">退出登录</el-dropdown-item>
    4
    
                  
    5
    ```
  3. 知识点补充 知识点补充
    1
    今天讲两篇,此为上篇,下篇会接着!
    2
    截止目前,我们的物业系统越来越完善,但是还是很大一部分还是没有完成,包括测试之类的。
    3
    话不多说,先讲讲API接口篇,本来接口没什么好讲的,但是不一定,像我这种新手就掉坑里了。先了解axios请求,从官方文档来看,axios是基于promise的HTTP库,可以用在浏览器和node.js中。
    4
    其特点是:
    5
    ```
  4. element-ui小笔记 element-ui小笔记
    1
    1.在每次弹窗<el-dialog>的时候,想要一开始初始化数据表格为空的话,最好是在标签里面加v-if=“”;
    2
    2.v-bind在接口请求之前,显示加载中,知道请求到数据后消失,在data初始化,在mounted中设置成true,再去请求接口,在接口的回调函数中为false,达到效果(意思就是在res.code==0的时候,为false);
    3
    3.v-if和v-for,v-for的优先度比v-if更高,这意味这每次v-for循环的都会执行一次v-if,可以把v-if放到父节点上;
    4
    4.现在写代码一定要想好再写,就比如今天同事写的代码,就让我深有感受。一个页面的开始编写:
    5
    首先,路由注册,这里要考虑页面时候要缓存,要的话,一般要加上keepalive,这里关联的就是actived(单词忘记了),在页面html没有渲染前先请求数据存起来;
  5. CSS 是前端必须要掌握的技能之一,一般面试也都会从 CSS 开始 CSS 是前端必须要掌握的技能之一,一般面试也都会从 CSS 开始
    1
    <p><a href="https://segmentfault.com/a/1190000020966360" target="_blank" rel="noopener">引用segmentfault一位大佬的原文,如有侵犯,请联系我给予删除</a></p>
    2
    <ul>
    3
    <li>盒模型</li>
    4
    <li>垂直居中的方法</li>
    5
    <li>三栏布局</li>