提交初始版本，使用vant ui库

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

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+export {};

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

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var relation_1 = require("../common/relation");
+var component_1 = require("../common/component");
+function emit(target, value) {
+    target.$emit('input', value);
+    target.$emit('change', value);
+}
+(0, component_1.VantComponent)({
+    field: true,
+    relation: (0, relation_1.useParent)('checkbox-group'),
+    classes: ['icon-class', 'label-class'],
+    props: {
+        value: Boolean,
+        disabled: Boolean,
+        useIconSlot: Boolean,
+        checkedColor: String,
+        labelPosition: {
+            type: String,
+            value: 'right',
+        },
+        labelDisabled: Boolean,
+        shape: {
+            type: String,
+            value: 'round',
+        },
+        iconSize: {
+            type: null,
+            value: 20,
+        },
+    },
+    data: {
+        parentDisabled: false,
+        direction: 'vertical',
+    },
+    methods: {
+        emitChange: function (value) {
+            if (this.parent) {
+                this.setParentValue(this.parent, value);
+            }
+            else {
+                emit(this, value);
+            }
+        },
+        toggle: function () {
+            var _a = this.data, parentDisabled = _a.parentDisabled, disabled = _a.disabled, value = _a.value;
+            if (!disabled && !parentDisabled) {
+                this.emitChange(!value);
+            }
+        },
+        onClickLabel: function () {
+            var _a = this.data, labelDisabled = _a.labelDisabled, parentDisabled = _a.parentDisabled, disabled = _a.disabled, value = _a.value;
+            if (!disabled && !labelDisabled && !parentDisabled) {
+                this.emitChange(!value);
+            }
+        },
+        setParentValue: function (parent, value) {
+            var parentValue = parent.data.value.slice();
+            var name = this.data.name;
+            var max = parent.data.max;
+            if (value) {
+                if (max && parentValue.length >= max) {
+                    return;
+                }
+                if (parentValue.indexOf(name) === -1) {
+                    parentValue.push(name);
+                    emit(parent, parentValue);
+                }
+            }
+            else {
+                var index = parentValue.indexOf(name);
+                if (index !== -1) {
+                    parentValue.splice(index, 1);
+                    emit(parent, parentValue);
+                }
+            }
+        },
+    },
+});

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

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

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

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+<wxs src="../wxs/utils.wxs" module="utils" />
+<wxs src="./index.wxs" module="computed" />
+
+<view class="{{ utils.bem('checkbox', [{ horizontal: direction === 'horizontal' }]) }} custom-class">
+  <view
+    wx:if="{{ labelPosition === 'left' }}"
+    class="label-class {{ utils.bem('checkbox__label', [labelPosition, { disabled: disabled || parentDisabled }]) }}"
+    bindtap="onClickLabel"
+  >
+    <slot />
+  </view>
+  <view class="van-checkbox__icon-wrap" bindtap="toggle">
+    <slot wx:if="{{ useIconSlot }}" name="icon" />
+    <van-icon
+      wx:else
+      name="success"
+      size="0.8em"
+      class="{{ utils.bem('checkbox__icon', [shape, { disabled: disabled || parentDisabled, checked: value }]) }}"
+      style="{{ computed.iconStyle(checkedColor, value, disabled, parentDisabled, iconSize) }}"
+      custom-class="icon-class"
+      custom-style="line-height: 1.25em;"
+    />
+  </view>
+  <view
+    wx:if="{{ labelPosition === 'right' }}"
+    class="label-class {{ utils.bem('checkbox__label', [labelPosition, { disabled: disabled || parentDisabled }]) }}"
+    bindtap="onClickLabel"
+  >
+    <slot />
+  </view>
+</view>

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

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+/* eslint-disable */
+var style = require('../wxs/style.wxs');
+var addUnit = require('../wxs/add-unit.wxs');
+
+function iconStyle(checkedColor, value, disabled, parentDisabled, iconSize) {
+  var styles = {
+    'font-size': addUnit(iconSize),
+  };
+
+  if (checkedColor && value && !disabled && !parentDisabled) {
+    styles['border-color'] = checkedColor;
+    styles['background-color'] = checkedColor;
+  }
+
+  return style(styles);
+}
+
+module.exports = {
+  iconStyle: iconStyle,
+};

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

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+@import '../common/index.wxss';.van-checkbox{align-items:center;display:flex;overflow:hidden;-webkit-user-select:none;user-select:none}.van-checkbox--horizontal{margin-right:12px}.van-checkbox__icon-wrap,.van-checkbox__label{line-height:var(--checkbox-size,20px)}.van-checkbox__icon-wrap{flex:none}.van-checkbox__icon{align-items:center;border:1px solid var(--checkbox-border-color,#c8c9cc);box-sizing:border-box;color:transparent;display:flex;font-size:var(--checkbox-size,20px);height:1em;justify-content:center;text-align:center;transition-duration:var(--checkbox-transition-duration,.2s);transition-property:color,border-color,background-color;width:1em}.van-checkbox__icon--round{border-radius:100%}.van-checkbox__icon--checked{background-color:var(--checkbox-checked-icon-color,#1989fa);border-color:var(--checkbox-checked-icon-color,#1989fa);color:#fff}.van-checkbox__icon--disabled{background-color:var(--checkbox-disabled-background-color,#ebedf0);border-color:var(--checkbox-disabled-icon-color,#c8c9cc)}.van-checkbox__icon--disabled.van-checkbox__icon--checked{color:var(--checkbox-disabled-icon-color,#c8c9cc)}.van-checkbox__label{word-wrap:break-word;color:var(--checkbox-label-color,#323233);padding-left:var(--checkbox-label-margin,10px)}.van-checkbox__label--left{float:left;margin:0 var(--checkbox-label-margin,10px) 0 0}.van-checkbox__label--disabled{color:var(--checkbox-disabled-label-color,#c8c9cc)}.van-checkbox__label:empty{margin:0}