input对中英文输入法判断

[imondo]

  <el-input
    v-model="barcode"
    @compositionstart.native="start"
    @compositionend.native="end"
  ></el-input>

  methods: {
    start() { // 中文开始输入
      this.composing = true;
    },
    end() { // 输入结束
      this.composing = false;
      this.barcode = '';
    }
 }