vue封装一个简单的div框选时间的组件的方法

 // 创建选框节点
   this.selectBoxDashed = document.createElement('div')
   this.selectBoxDashed.className = 'haorooms-select-box'

   document.body.appendChild(this.selectBoxDashed)
   this.scrollX = document.documentElement.scrollLeft || document.body.scrollLeft
   this.scrollY = document.documentElement.scrollTop || document.body.scrollTop
   // 设置选框的初始位置
   this.startX = e.x + this.scrollX || e.clientX + this.scrollX // e是鼠标事件的event
   this.startY = e.y + this.scrollY || e.clientY + this.scrollY // e是鼠标事件的event
   this.selectBoxDashed.style.cssText = `left:${this.startX}px;top:${this.startY}px`

 this.selectBoxDashed.style.display = 'block' // 上面创建的鼠标跟随div出现
   // 根据鼠标移动，设置选框的位置、宽高
   this.initx = e.x + this.scrollX || e.clientX + this.scrollX //鼠标移动的初始位置+滚动轴的位置
   this.inity = e.y + this.scrollY || e.clientY + this.scrollY
   // 暂存选框的位置及宽高，用于将 select-item 选中
   this.left = Math.min(this.initx, this.startX) 
   this.top = Math.min(this.inity, this.startY)
   this.width = Math.abs(this.initx - this.startX)
   this.height = Math.abs(this.inity - this.startY)
   this.selectBoxDashed.style.left = `${this.left}px`
   this.selectBoxDashed.style.top = `${this.top}px`
   this.selectBoxDashed.style.width = `${this.width}px`
   this.selectBoxDashed.style.height = `${this.height}px`
   let fileDivs = document.getElementsByClassName('list') // 获取要选中的div列表
   for (let i = 0; i < fileDivs.length; i++) {
    let itemX_pos = fileDivs[i].offsetWidth + fileDivs[i].offsetLeft
    let itemY_pos = fileDivs[i].offsetHeight + fileDivs[i].offsetTop
    let condition1 = itemX_pos > this.left
    let condition2 = itemY_pos > this.top
    let condition3 = fileDivs[i].offsetLeft < (this.left + this.width)
    let condition4 = fileDivs[i].offsetTop < (this.top + this.height)
    if (condition1 && condition2 && condition3 && condition4) {// 在框选范围之内
     fileDivs[i].classList.add('temp-selected')
    } else {
     fileDivs[i].classList.remove('temp-selected')
    }
   }

 let selectDom = document.getElementsByClassName('temp-selected');
   [].slice.call(selectDom).forEach(item => {
    if (item.classList.contains('selected')) {
     item.classList.remove('selected')
    } else {
     item.classList.add('selected')
    }
    item.classList.remove('temp-selected')
   })
   if (this.selectBoxDashed) {
    try {
     this.selectBoxDashed.parentNode.removeChild(this.selectBoxDashed)
    } catch (err) {
     // console.log(err)
    }
   }
   let fileDivs = document.getElementsByClassName('list') // 这里是改变数据
   for (let i = 0; i < fileDivs.length; i++) {
    if (fileDivs[i].classList.contains('selected')) {
     this.timeList[i] = '1'
    } else {
     this.timeList[i] = '0'
    }
   }

npm install timedivselect -S

import timeDivSelect from 'timedivselect'

npm adduser
// 输入用户名，密码等【npm 网站要提前注册，npm网站的用户名和密码】

npm login

npm publish // 发布
npm unpublish 包名 // 撤销删除

sudo npm install -g nrm

nrm ls

nrm use npm