How to implement the single selection function in Uniapp?

In uniapp, you can use the radio component to implement single selection functionality. The specific steps are as follows:

1. In the vue file of the page where the single selection feature needs to be added, use the radio component to create radio buttons. For example:

<radio v-model="selectedValue" :value="1">选项1</radio>
<radio v-model="selectedValue" :value="2">选项2</radio>
<radio v-model="selectedValue" :value="3">选项3</radio>

1. Define a variable selectedValue in the data to store the value selected by the user, for example:

data() {
  return {
    selectedValue: null
  }
}

1. When the user clicks on the radio buttons, the value of selectedValue will be updated to the value chosen by the user. You can use watch to monitor the changes in selectedValue and perform corresponding actions, such as:

watch: {
  selectedValue(newValue, oldValue) {
    console.log('用户选择了', newValue)
  }
}

By following the steps above, you can add a single selection feature in uniapp.