提交初始版本，使用vant ui库

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

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+export {};

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

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var component_1 = require("../common/component");
+(0, component_1.VantComponent)({
+    field: true,
+    classes: ['node-class'],
+    props: {
+        checked: null,
+        loading: Boolean,
+        disabled: Boolean,
+        activeColor: String,
+        inactiveColor: String,
+        size: {
+            type: String,
+            value: '30',
+        },
+        activeValue: {
+            type: null,
+            value: true,
+        },
+        inactiveValue: {
+            type: null,
+            value: false,
+        },
+    },
+    methods: {
+        onClick: function () {
+            var _a = this.data, activeValue = _a.activeValue, inactiveValue = _a.inactiveValue, disabled = _a.disabled, loading = _a.loading;
+            if (disabled || loading) {
+                return;
+            }
+            var checked = this.data.checked === activeValue;
+            var value = checked ? inactiveValue : activeValue;
+            this.$emit('input', value);
+            this.$emit('change', value);
+        },
+    },
+});

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

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+{
+  "component": true,
+  "usingComponents": {
+    "van-loading": "../loading/index"
+  }
+}

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

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+<wxs src="../wxs/utils.wxs" module="utils" />
+<wxs src="./index.wxs" module="computed" />
+
+<view
+  class="{{ utils.bem('switch', { on: checked === activeValue, disabled }) }} custom-class"
+  style="{{ computed.rootStyle({ size, checked, activeColor, inactiveColor, activeValue }) }}"
+  bind:tap="onClick"
+>
+  <view class="van-switch__node node-class">
+    <van-loading
+      wx:if="{{ loading }}"
+      color="{{ computed.loadingColor({ checked, activeColor, inactiveColor, activeValue }) }}"
+      custom-class="van-switch__loading"
+    />
+  </view>
+</view>

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

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+/* eslint-disable */
+var style = require('../wxs/style.wxs');
+var addUnit = require('../wxs/add-unit.wxs');
+
+function rootStyle(data) {
+  var currentColor = data.checked === data.activeValue ? data.activeColor : data.inactiveColor;
+
+  return style({
+    'font-size': addUnit(data.size),
+    'background-color': currentColor,
+  });
+}
+
+var BLUE = '#1989fa';
+var GRAY_DARK = '#969799';
+
+function loadingColor(data) {
+  return data.checked === data.activeValue
+    ? data.activeColor || BLUE
+    : data.inactiveColor || GRAY_DARK;
+}
+
+module.exports = {
+  rootStyle: rootStyle,
+  loadingColor: loadingColor,
+};

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

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+@import '../common/index.wxss';.van-switch{background-color:var(--switch-background-color,#fff);border:var(--switch-border,1px solid rgba(0,0,0,.1));border-radius:var(--switch-node-size,1em);box-sizing:initial;display:inline-block;height:var(--switch-height,1em);position:relative;transition:background-color var(--switch-transition-duration,.3s);width:var(--switch-width,2em)}.van-switch__node{background-color:var(--switch-node-background-color,#fff);border-radius:100%;box-shadow:var(--switch-node-box-shadow,0 3px 1px 0 rgba(0,0,0,.05),0 2px 2px 0 rgba(0,0,0,.1),0 3px 3px 0 rgba(0,0,0,.05));height:var(--switch-node-size,1em);left:0;position:absolute;top:0;transition:var(--switch-transition-duration,.3s) cubic-bezier(.3,1.05,.4,1.05);width:var(--switch-node-size,1em);z-index:var(--switch-node-z-index,1)}.van-switch__loading{height:50%;left:25%;position:absolute!important;top:25%;width:50%}.van-switch--on{background-color:var(--switch-on-background-color,#1989fa)}.van-switch--on .van-switch__node{transform:translateX(calc(var(--switch-width, 2em) - var(--switch-node-size, 1em)))}.van-switch--disabled{opacity:var(--switch-disabled-opacity,.4)}