提交初始版本，使用vant ui库

miniprogram_npm/@vant/weapp/icon/index.wxs

@@ -0,0 +1,43 @@
+/* eslint-disable */
+var style = require('../wxs/style.wxs');
+var addUnit = require('../wxs/add-unit.wxs');
+
+function isImage(name) {
+  return name.indexOf('/') !== -1;
+}
+
+function rootClass(data) {
+  var classes = ['custom-class'];
+
+  if (data.classPrefix !== 'van-icon') {
+    classes.push('van-icon--custom')
+  }
+
+  if (data.classPrefix != null) {
+    classes.push(data.classPrefix);
+  }
+
+  if (isImage(data.name)) {
+    classes.push('van-icon--image');
+  } else if (data.classPrefix != null) {
+    classes.push(data.classPrefix + '-' + data.name);
+  }
+
+  return classes.join(' ');
+}
+
+function rootStyle(data) {
+  return style([
+    {
+      color: data.color,
+      'font-size': addUnit(data.size),
+    },
+    data.customStyle,
+  ]);
+}
+
+module.exports = {
+  isImage: isImage,
+  rootClass: rootClass,
+  rootStyle: rootStyle,
+};