利用jquery修改elment的自定义组件多选框el-select（修改多选框的颜色）_el-select渲染颜色

先上图片

一实现逻辑  我们知道element颜色默认为灰色，首先便签名称是唯一的，我的实现逻辑是后端传给前端

含有颜色，名称的数组，然后vue记录一个对象{名称 => 颜色}，当用户选择标签之后，触发

点击事件，然后去除框中的名称，然后一一渲染颜色。

二代码实现

handleExpandChange() {
              this.$nextTick(function () {
                  let cc = this.$refs['myCascader'].popperJS
if (cc != null) {
                      let c = cc._popper
                      let b = c.getElementsByClassName('el-cascader-panel')
                      let d = b[0].childNodes
                      //修改列表
                      //增加按钮
   if(rightShow('CrmContact@getContactLabel')) {
                          let left = d[0];
                          if(left != null) {
                              let e = left.getElementsByClassName("el-scrollbar__view")
                              let child = e[0]
                              let childLength = child.getElementsByClassName("el-cascader-node");
                              if(childLength.length <= 5) {
                                  $(child).append(`<li role="menuitem" id="cascader-menu-7218-0-3" tabindex="-1" class="el-cascader-node" aria-haspopup="true" aria-owns="cascader-menu-7218-0"><label class="el-checkbox"><span class="el-checkbox__input button-icon-color"><span class="el-icon-plus"></span><input type="checkbox" aria-hidden="false" class="el-checkbox__original" value=""></span></label><span class="el-cascader-node__label"><div type="button" class="button-add-tags" onclick="vue.fn()"><tags:lang>新增标签</tags:lang></div></span></li>`)
                              }
                          }
   }                   //修改标签颜色
                      //改变颜色
                      let f = d[1];
                      if(f != null) {
                          f.style.minWidth = "220px"
                          let e = f.getElementsByClassName("el-cascader-node");
                          for(let i = 0; i < e.length; i++) {
                              e[i].style.height = "40px"
                              let objLeft = e[i].getElementsByTagName("label")
                              objLeft[0].style.float = "right"
                              objLeft[0].style.marginLeft = "70px"
                              objLeft[0].style.bottom = "3px"
                              e[i].append(objLeft[0])
 
         let obj = e[i].getElementsByTagName("span")
                              obj[0].style.backgroundColor = this.allTags[obj[0].innerHTML]['value']
                              obj[0].style.color = "#fff"
                              obj[0].style.maxWidth = "500px"
                              obj[0].style.maxHeight = "28px"
                              obj[0].style.textAlign = "center"
                              obj[0].style.lineHeight = "28px"
                              obj[0].title= e[i].innerHTML
 
                          }
                      }
}
              })
          },

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