Page光标focus在某个控件

1. Input 属性增加autofocus

  <el-input 
  v-model="scanner.workds" 
  type="textarea" 
  ref="scannerArea"
  placeholder="Scanner Working" 
  clearable 
  :autosize="{ minRows: 3 }" 
  autofocus
  
  />

2. ts 通过onMounted操控ref 前端input

const scannerArea = ref<HTMLInputElement | HTMLTextAreaElement | null>(null)

  onMounted(() => {
    if (scannerArea.value) {
      scannerArea.value.focus()
    }
  })