uni.navigateTo({
                    url:'/pages/new....'
                    success : () => {
                        uni.$emit("news",element);
                    }
                })

第二个页面

export default {
        name: "news_details",
        data() {
            return {
                title: '',
                newData:null,
            }
        },
        onLoad(option) {
            let $this = this;
            uni.$once("news", (res) => {
                console.log("res----",res);
                $this.newData = res;
                console.log("res----",$this.newData);
            })
        },
        
        methods: {
            
        }
    }