ylrz_scrm_companyUI/src/directive/select/elSelectLoadMore.js

export default {
  inserted(el, binding, vnode) {
    const SELECT_WRAP_DOM = el.querySelector('.el-select-dropdown .el-select-dropdown__wrap')
    SELECT_WRAP_DOM.addEventListener('scroll', function() {
      const condition = this.scrollHeight - this.scrollTop <= this.clientHeight
      if (condition) {
        binding.value()
      }
    })
  }
}