提交初始版本，使用vant ui库

miniprogram_npm/@vant/weapp/loading/index.d.ts

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+export {};

miniprogram_npm/@vant/weapp/loading/index.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var component_1 = require("../common/component");
+(0, component_1.VantComponent)({
+    props: {
+        color: String,
+        vertical: Boolean,
+        type: {
+            type: String,
+            value: 'circular',
+        },
+        size: String,
+        textSize: String,
+    },
+    data: {
+        array12: Array.from({ length: 12 }),
+    },
+});

miniprogram_npm/@vant/weapp/loading/index.json

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+{
+  "component": true
+}

miniprogram_npm/@vant/weapp/loading/index.wxml

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+<wxs src="../wxs/utils.wxs" module="utils" />
+<wxs src="./index.wxs" module="computed" />
+
+<view class="custom-class {{ utils.bem('loading', { vertical }) }}">
+  <view
+    class="van-loading__spinner van-loading__spinner--{{ type }}"
+    style="{{ computed.spinnerStyle({ color, size }) }}"
+  >
+    <view
+      wx:if="{{ type === 'spinner' }}"
+      wx:for="{{ array12 }}"
+      wx:key="index"
+      class="van-loading__dot"
+    />
+  </view>
+  <view class="van-loading__text" style="{{ computed.textStyle({ textSize }) }}">
+    <slot />
+  </view>
+</view>

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

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+/* eslint-disable */
+var style = require('../wxs/style.wxs');
+var addUnit = require('../wxs/add-unit.wxs');
+
+function spinnerStyle(data) {
+  return style({
+    color: data.color,
+    width: addUnit(data.size),
+    height: addUnit(data.size),
+  });
+}
+
+function textStyle(data) {
+  return style({
+    'font-size': addUnit(data.textSize),
+  });
+}
+
+module.exports = {
+  spinnerStyle: spinnerStyle,
+  textStyle: textStyle,
+};

miniprogram_npm/@vant/weapp/loading/index.wxss

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+@import '../common/index.wxss';:host{font-size:0;line-height:1}.van-loading{align-items:center;color:var(--loading-spinner-color,#c8c9cc);display:inline-flex;justify-content:center}.van-loading__spinner{animation:van-rotate var(--loading-spinner-animation-duration,.8s) linear infinite;box-sizing:border-box;height:var(--loading-spinner-size,30px);max-height:100%;max-width:100%;position:relative;width:var(--loading-spinner-size,30px)}.van-loading__spinner--spinner{animation-timing-function:steps(12)}.van-loading__spinner--circular{border:1px solid transparent;border-radius:100%;border-top-color:initial}.van-loading__text{color:var(--loading-text-color,#969799);font-size:var(--loading-text-font-size,14px);line-height:var(--loading-text-line-height,20px);margin-left:var(--padding-xs,8px)}.van-loading__text:empty{display:none}.van-loading--vertical{flex-direction:column}.van-loading--vertical .van-loading__text{margin:var(--padding-xs,8px) 0 0}.van-loading__dot{height:100%;left:0;position:absolute;top:0;width:100%}.van-loading__dot:before{background-color:currentColor;border-radius:40%;content:" ";display:block;height:25%;margin:0 auto;width:2px}.van-loading__dot:first-of-type{opacity:1;transform:rotate(30deg)}.van-loading__dot:nth-of-type(2){opacity:.9375;transform:rotate(60deg)}.van-loading__dot:nth-of-type(3){opacity:.875;transform:rotate(90deg)}.van-loading__dot:nth-of-type(4){opacity:.8125;transform:rotate(120deg)}.van-loading__dot:nth-of-type(5){opacity:.75;transform:rotate(150deg)}.van-loading__dot:nth-of-type(6){opacity:.6875;transform:rotate(180deg)}.van-loading__dot:nth-of-type(7){opacity:.625;transform:rotate(210deg)}.van-loading__dot:nth-of-type(8){opacity:.5625;transform:rotate(240deg)}.van-loading__dot:nth-of-type(9){opacity:.5;transform:rotate(270deg)}.van-loading__dot:nth-of-type(10){opacity:.4375;transform:rotate(300deg)}.van-loading__dot:nth-of-type(11){opacity:.375;transform:rotate(330deg)}.van-loading__dot:nth-of-type(12){opacity:.3125;transform:rotate(1turn)}@keyframes van-rotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}