uniapp Vue2 子组件给父组件传值

<template>
 <view>
    <button @click="sendValue">点击发送值</button>
  </view>
</template>
<script>
  export default {
    data() {
      return {
        zhi:'子的值'
      }
    },
    onLoad() {
    },
    watch: {
    },
    methods: {
sendValue() {
      this.$emit('myevent', this.zhi);
    }
    },
  }
</script>
<style>
</style>

<template>
  <TC-WXlogin @myevent="handleEvent" />
</template>
<script>
  import TCWXlogin from '/uni_modules/TC-WXlogin/pages/index.vue';
  export default {
    components:{
    TCWXlogin 
    },
    data() {
      return {
      }
    },
    onLoad() {
    },
    methods: {
       handleEvent(value) {
            console.log(value); // 输出子的值
      }
    }
  }
</script>
<style>
</style>