How to use the broadcast mode in vue to realize the pda scanning gun scanning

the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > use radio in the Vue mode can be done by the Vue event mechanism. Here's a simple way to do it:

1. Use the $on method to listen for scan events in the component that needs to receive the scan gun:

mounted() {
  this.$on('scan', this.handleScan)
},
methods: {
  handleScan(data) {
    // 处理扫描到的数据
  }
}

2. Use the $emit method to trigger the scan event of the scan gun and pass the scanned data as parameters:

scan() {
  const data = '扫描到的数据'
  this.$emit('scan', data)
}

3. In a Vue instance, you can emit a scan event using the $emit method:

this.$emit('scan', data)

In this way, when a scan event is triggered by the scan gun, the component listening for the scan event receives the scanned data and processes it accordingly.