说明：为实现输入限制，不可输入空格，长度限制。

inputView.vue

<template>
  <!-- 输入框 -->
  <el-input
    :type="type"
    :placeholder="placeholder"
    v-model="input"
    @input="inputChange"
    :maxlength="maxlength"
  ></el-input>
</template>
<script>
export default {
  props: {
    type: {
      type: String,
      default: "text",
    },
    value: {
      type: [String, Number],
      default() {
        return "";
      },
    },
    maxlength: {
      type: Number,
      default: 30,
    },
    placeholder: {
      type: String,
      default: "",
    },
  },
  watch: {
    value: {
      handler(val) {
        this.input = val;
      },
      deep: true,
    },
  },
  data() {
    return {
      input: this.value,
    };
  },
  methods: {
    inputChange(value) {
      this.input = value?.replace(/\s/g, "");
      if (this.type === "num") {
       // 做数字型的判断，因为采用input 的 Number 类型，最大值还得做单独匹配，偷懒，所以用了num代替
        this.input = Number(value?.replace(/\D/g, ""));
      }
      this.$emit("input", this.input);
    },
  },
};
</script>

全局注册

components/index.js

main.js 中引入

import Components from '@/components'
Vue.use(Components)

组件中使用

<inputView
  v-model="propertyForm.count"
  style="width: 80px; margin: 0 10px"
  type="num"
  :maxlength="5"
></inputView>
 
<inputView
  v-model="formInline.riskName"
  placeholder="请输入"
></inputView>