wx_mini_app/components/addContacts/addContacts.vue

<template>
<view class="pages">
    <div class="form-input">
        <u-input v-model="form.name" placeholder="请输入名称" border="bottom"></u-input>
        <u-input v-model="form.phone" placeholder="请输入手机号" border="bottom"></u-input>
    </div>
    <div class="form-btn">
        <u-button type="primary" @click="save">添加</u-button>
    </div>
</view>
</template>

<script>
export default {
    data() {
        return {
            form: {
                name: '',
                phone: ''
            }
        }
    },
    methods: {
        save() {
            if (this.form.name == '') {
                this.$u.toast('请输入名称')
                return
            }
            if (this.form.phone == '') {
                this.$u.toast('请输入手机号')
                return
            }
            //返回上一页并添加联系人
            let pages = getCurrentPages(); //获取所有页面栈实例列表
            let nowPage = pages[pages.length - 1]; //当前页页面实例
            let prevPage = pages[pages.length - 2]; //上一页页面实例
			console.log(prevPage.$vm.contactsList);
			prevPage.$vm.contactsList.push(this.form);
			uni.navigateBack(1)


            // this.$u.post('/api/contacts/add',this.form).then(res => {
            // 	if(res.code == 0){
            // 		this.$u.toast('添加成功')
            // 		setTimeout(() => {
            // 		uni.navigateBack({
            // 		delta: 1
            // 		})
            // 		}, 1000);
            // 	}
            // })
        }
    }
}
</script>

<style lang="scss" scoped>
.pages {
    width: 100%;
    height: 100vh;
    background: #f5f5f5;
}

.form-input {
    background: #fff;
    padding: 10px;
}
.form-btn{}
</style>