zx_flk_app/mixin/index.js

// mixins/countdownMixin.js
var bluetooth = require('@/common/bluetooth.js');
export default {
  data() {
    return {
      testCountdown: 10, // 倒计时初始值
    };
  },
  methods: {
    startCountdown(t) {
      this.testCountdown=20
	  console.log('test-----',t,this.testCountdown);
    },
  },
  created(){
	  this.startCountdown(1)
  },
  mounted() {
	  this.startCountdown(2)
  },
  beforeDestroy() {
  },
};