提交初始版本，使用vant ui库

miniprogram_npm/@vant/weapp/grid-item/index.wxs

@@ -0,0 +1,32 @@
+/* eslint-disable */
+var style = require('../wxs/style.wxs');
+var addUnit = require('../wxs/add-unit.wxs');
+
+function wrapperStyle(data) {
+  var width = 100 / data.columnNum + '%';
+
+  return style({
+    width: width,
+    'padding-top': data.square ? width : null,
+    'padding-right': addUnit(data.gutter),
+    'margin-top':
+      data.index >= data.columnNum && !data.square
+        ? addUnit(data.gutter)
+        : null,
+  });
+}
+
+function contentStyle(data) {
+  return data.square
+    ? style({
+        right: addUnit(data.gutter),
+        bottom: addUnit(data.gutter),
+        height: 'auto',
+      })
+    : '';
+}
+
+module.exports = {
+  wrapperStyle: wrapperStyle,
+  contentStyle: contentStyle,
+};