摘要&＃xff1a; mpvue中页面之间传值&＃xff08;注意&＃xff1a;是页面之间&＃xff0c;不是组件之间&＃xff09;
场景&＃xff1a;A页面跳转B页面&＃xff0c;在B页面选择商品&＃xff0c;将商品名带回A页面并显示
使用api&＃xff1a; getCurrentPages
step1&＃xff1a;
A页面js:
先定义一个全局的对象that&＃xff0c;然后在mouted中把this赋给that
<script>
var that &＃61; null;
export default {data () {return {setData: function (key,value) {that[key] &＃61; value}}},
}
<script>
mounted () {that &＃61; this;},
step2&＃xff1a;
B页面js
1 getBrand (brand) {
2 let { from } &＃61; this.$root.$mp.query
3 let pages &＃61; getCurrentPages()
4 let page &＃61; pages.find( item &＃61;> item.route.indexOf(from) !&＃61; -1)
5 page.data.$root[0].setData(&＃39;brand&＃39;,brand)
6 wx.navigateBack({
7 delta: 1
8 });
9 }
讲解完毕&＃xff0c;88&＃xff0c; 下次见
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