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之前还在为不用研究输入中文而暗自窃喜 这不新需求就来了（新需求不会迟到 它只是在路上飞一会儿）
找到了个博主分享的代码 是好使的 @前端-xyq 已经和原作者申请转载了 感谢~~

原作者地址：https://www.cnblogs.com/linjiangxian/p/16223681.html

抄的过程中发现 诶？ 这不我之前用的那个虚拟键盘组件吗 这货还带中文呢
是的 他带 上一篇还有人问我能不能中文输入 我之前瞪两眼珠子 活拉就是没看见

原作者的方法就是能实现的 套了两层组件keyboard-input 和 simpleKeyboard
两个utils的js方法 core.js隐藏键盘 和 mixins.js 表单字段校验(这里用element-ui el-form的prop validate校验也行)

用的过程中发现有两个报错
1.点击关闭if (button == ‘{close}’) 会报

if里改成如下代码即可

	if (button == '{close}') {let arr = document.querySelectorAll('.hg-theme-default');arr.forEach((ele) => {ele.style.visibility = 'hidden';});return false;}

2.中英文切换时会报错

改成如下代码即可

        if (this.keyboard.options.layoutCandidates !== null) {this.displayDefault = {'{bksp}': 'backspace','{lock}': 'caps','{tab}': 'tab','{shift}': 'shift','{change}': '中文','{space}': ' ','{clear}': '清空','{close}': '关闭',},this.keyboard.setOptions({layoutCandidates: null,display: this.displayDefault,});} else {this.displayDefault = {'{bksp}': 'backspace','{lock}': 'caps','{tab}': 'tab','{shift}': 'shift','{change}': '英文','{space}': ' ','{clear}': '清空','{close}': '关闭',},this.keyboard.setOptions({layoutCandidates: layout.layoutCandidates,display: this.displayDefault,});}

我这里修改了simpleKeyboard内的部分代码 做了点样式调整

<template><div :class="keyboardClass"></div>
</template><script>
import Keyboard from 'simple-keyboard';
import 'simple-keyboard/build/css/index.css';
import layout from 'simple-keyboard-layouts/build/layouts/chinese'; // 中文输入法export default {name: 'SimpleKeyboard',props: {keyboardClass: {default: 'simple-keyboard',type: String,},input: {type: String,default: '',},},data: () => ({keyboard: null,}),mounted() {this.keyboard = new Keyboard(this.keyboardClass, {onChange: this.onChange,onKeyPress: this.onKeyPress,...layout});this.setKeyboard()},methods: {setKeyboard() {this.keyboard.setOptions({layoutName: "shift",layoutCandidatesPageSize: 10,theme: "hg-theme-default hg-layout-default myTheme",layout: {// 默认布局default: ['` 1 2 3 4 5 6 7 8 9 0 - = {bksp}','{tab} q w e r t y u i o p [ ] \\',"{lock} a s d f g h j k l ; '",'{shift} z x c v b n m , . / {clear}','{change} {space} {close}',],// 切换shift布局shift: ['~ ! @ # $ % ^ & * ( ) _ + {bksp}','{tab} Q W E R T Y U I O P { } |','{lock} A S D F G H J K L : "','{shift} Z X C V B N M < > ? {clear}','{change} {space} {close}',],},buttonTheme: [{class: 'hg-red close',buttons: '{close}',},{class: 'hg-red change',buttons: '{change}',},],display: {'{bksp}': 'backspace','{lock}': 'caps','{tab}': 'tab','{shift}': 'shift','{change}': '英文','{space}': ' ','{clear}': '清空','{close}': '关闭',}});},onChange(input) {this.$emit('onChange', input);},// 点击键盘onKeyPress(button, $event) {console.log("onKeyPress -> $event", $event)if (button == '{close}') {let arr = document.querySelectorAll('.hg-theme-default');arr.forEach((ele) => {ele.style.visibility = 'hidden';});return false;} else if (button == '{change}') { // 切换中英输入法        if (this.keyboard.options.layoutCandidates !== null) {this.displayDefault = {'{bksp}': 'backspace','{lock}': 'caps','{tab}': 'tab','{shift}': 'shift','{change}': '中文','{space}': ' ','{clear}': '清空','{close}': '关闭',},this.keyboard.setOptions({layoutCandidates: null,display: this.displayDefault,});} else {this.displayDefault = {'{bksp}': 'backspace','{lock}': 'caps','{tab}': 'tab','{shift}': 'shift','{change}': '英文','{space}': ' ','{clear}': '清空','{close}': '关闭',},this.keyboard.setOptions({layoutCandidates: layout.layoutCandidates,display: this.displayDefault,});}} else if (button == '{clear}') {this.keyboard.clearInput();} else {let value = $event.target.offsetParent.parentElement.children[0].children[0].value;if (value) {this.keyboard.setInput(value);}        }this.$emit('onKeyPress', button);/*** If you want to handle the shift and caps lock buttons*/if (button === '{shift}' || button === '{lock}') this.handleShift();},handleShift() {let currentLayout = this.keyboard.options.layoutName;let shiftToggle = currentLayout === "default" ? "shift" : "default";this.keyboard.setOptions({layoutName: shiftToggle});} },watch: {input(input) {this.keyboard.setInput(input);},},
};
</script><style scoped>.hg-theme-default {width: 80%;padding: 15px;box-shadow: 0 4px 0 #b2b2b2, 0 7px 16px rgba(0,0,0,.3);}.hg-theme-default /deep/ .hg-button {height: 50px;    }.hg-theme-default /deep/ .hg-red {background: #a8001e!important;color: white;}.hg-theme-default /deep/ .hg-red {max-width: 200px;}.hg-theme-default /deep/ .close {max-width: 200px;}.hg-theme-default /deep/ .change {max-width: 200px;}.hg-theme-default /deep/ .hg-button{height: 50px;margin: 8px 10px;font-size: 23px;background-color: #fff;border-radius: 8px;cursor: pointer;-webkit-box-shadow: 0 4px 0 #b2b2b2, 0 5px 10px rgba(0,0,0,.7);box-shadow: 0 3px 0 #b2b2b2, 0 4px 6px rgba(0,0,0,.7);}.hg-theme-default /deep/ .hg-button:active {box-shadow: 0 4px 0 #717070, 0 5px 3px rgba(0,0,0,.9);background-color: #efefef;}.hg-theme-default /deep/ .hg-layout-default .hg-button.bksp {height: 50px;margin: 8px 10px;font-size: 23px;background-color: #fff;border-radius: 8px;cursor: pointer;-webkit-box-shadow: 0 4px 0 #b2b2b2, 0 5px 10px rgba(0,0,0,.7);box-shadow: 0 3px 0 #b2b2b2, 0 4px 6px rgba(0,0,0,.7);background: #a8001e;color: white;}.hg-theme-default /deep/ .hg-layout-default .hg-button.bksp:active {box-shadow: 0 4px 0 #717070, 0 5px 3px rgba(0,0,0,.9);background-color: #efefef;color: #000000;}.hg-theme-default /deep/ .hg-layout-default .hg-button.enter {height: 50px;margin: 5px 8px;font-size: 23px;background-color: #fff;border-radius: 8px;cursor: pointer;-webkit-box-shadow: 0 4px 0 #b2b2b2, 0 5px 10px rgba(0,0,0,.7);box-shadow: 0 3px 0 #b2b2b2, 0 4px 6px rgba(0,0,0,.7);background: #a8001e;color: white;}.hg-theme-default /deep/ .hg-layout-default .hg-button.enter:active {box-shadow: 0 4px 0 #717070, 0 5px 3px rgba(0,0,0,.9);background-color: #efefef;color: #000000;}
</style>

外层组件keyboard-input的css样式

<style scoped>.input-keyboard /deep/ .hg-theme-default {position: fixed;left: 50%;bottom: 230px;transform: translate(-50%);visibility: hidden;margin-top: 20px;z-index: 2000; }.input-keyboard /deep/ .hg-candidate-box {position: static;transform: translateY(0);border-bottom: none;border-radius: none;}.input-keyboard /deep/.hg-rows {font-size: 25px;}.input-keyboard /deep/ .hg-candidate-box {font-size: 23px;} .input-keyboard /deep/ li.hg-candidate-box-list-item {   height: 60px;width: 40px;padding: 0 6px;}
</style><style scoped>.input-keyboard /deep/ .el-input__inner {color: #000;border-color: #adadad;height: 45px;}.input-keyboard /deep/ .el-form-item.is-error .el-input__inner, .el-form-item.is-error .el-input__inner:focus, .el-form-item.is-error .el-textarea__inner, .el-form-item.is-error .el-textarea__inner:focus, .el-message-box__input input.invalid, .el-message-box__input input.invalid:focus {border-color: #a8001c;}.input-keyboard /deep/ .el-form-item__error {color: #a8001c;font-size: 17px;line-height: 1;padding-top: 2px;position: absolute;top: 100%;left: 0;}.input-keyboard /deep/ .el-form-item {margin-bottom: 50px;}.input-keyboard /deep/ .el-form-item__label {font-size: 25px;color: #000000;}.input-keyboard /deep/ .el-input.is-disabled .el-input__inner {font-size: 25px;height: 45px;background-color: #fff;border-color: #adadad;color: #000;cursor: not-allowed;}.input-keyboard /deep/ .el-textarea__inner {   font-size: 25px;color: #000000;   }.input-keyboard /deep/ .el-textarea.is-disabled .el-textarea__inner {font-size: 25px;height: 45px;background-color: #fff;border-color: #adadad;color: #000;cursor: not-allowed;font-family: Avenir,Helvetica,Arial,sans-serif;}.input-keyboard /deep/ .el-input.is-active .el-input__inner, .el-input__inner:focus {border-color: #a8001e;outline: 0;}.input-keyboard /deep/ .el-input.is-disabled .el-input__wrapper {background-color: #ffffff;} .input-keyboard /deep/ .el-form-item.is-error .el-select-v2__wrapper, .el-form-item.is-error .el-select-v2__wrapper:focus, .el-form-item.is-error .el-textarea__inner, .el-form-item.is-error .el-textarea__inner:focus {box-shadow: 0 0 0 1px #a8001e inset;}
</style>

再次感谢作者@前端-xyq