vant

utils/dist/row/index.d.ts

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+export {};

utils/dist/row/index.js

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+import { VantComponent } from '../common/component';
+VantComponent({
+    relation: {
+        name: 'col',
+        type: 'descendant',
+        linked(target) {
+            if (this.data.gutter) {
+                target.setGutter(this.data.gutter);
+            }
+        }
+    },
+    props: {
+        gutter: Number
+    },
+    watch: {
+        gutter: 'setGutter'
+    },
+    mounted() {
+        if (this.data.gutter) {
+            this.setGutter();
+        }
+    },
+    methods: {
+        setGutter() {
+            const { gutter } = this.data;
+            const margin = `-${Number(gutter) / 2}px`;
+            const style = gutter
+                ? `margin-right: ${margin}; margin-left: ${margin};`
+                : '';
+            this.setData({ style });
+            this.getRelationNodes('../col/index').forEach(col => {
+                col.setGutter(this.data.gutter);
+            });
+        }
+    }
+});

utils/dist/row/index.json

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+{
+  "component": true
+}

utils/dist/row/index.wxml

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+<view class="custom-class van-row" style="{{ style }}">
+  <slot />
+</view>

utils/dist/row/index.wxss

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+@import '../common/index.wxss';.van-row:after{display:table;clear:both;content:""}