将texbox限制为不接受数字格式("010")

<input type="text" pattern="[^0-9]+" title="不能输入数字" />

from flask import Flask, request

app = Flask(__name__)

@app.route('/submit', methods=['POST'])
def submit():
    data = request.form['textbox']
    if data.isdigit():
        return "不能输入数字"
    else:
        # 处理其他逻辑
        return "提交成功"

if __name__ == '__main__':
    app.run()

<template>
  <div>
    <input type="text" v-model="textbox" @input="checkInput" />
    <p v-if="isNumber">不能输入数字</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      textbox: '',
      isNumber: false
    };
  },
  methods: {
    checkInput() {
      this.isNumber = /^\d+$/.test(this.textbox);
    }
  }
};
</script>

const express = require('express');
const app = express();
const bodyParser = require('body-parser');

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.post('/submit', (req, res) => {
  const data = req.body.textbox;
  if (/^\d+$/.test(data)) {
    res.send('不能输入数字');
  } else {
    // 处理其他逻辑
    res.send('提交成功');
  }
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});