随机车牌

复制import random

# 各省车牌简称前缀
PROVINCE_PREFIXES = [
    '京', '津', '沪', '渝', '冀', '豫', '云', '辽', '黑', '湘',
    '皖', '鲁', '新', '苏', '浙', '赣', '鄂', '桂', '甘', '晋',
    '蒙', '陕', '吉', '闽', '贵', '粤', '川', '青', '藏', '琼',
    '宁'
]

# 字母（不含 I、O 避免混淆）
LETTERS = [chr(c) for c in range(ord('A'), ord('Z')+1) if chr(c) not in 'IO']
DIGITS = [str(d) for d in range(10)]

def random_plate():
    """生成随机车牌号"""
    prefix = random.choice(PROVINCE_PREFIXES)
    city_letter = random.choice(LETTERS)
    # 5位：字母+数字混合
    body = ''.join(random.choices(LETTERS + DIGITS, k=5))
    return f'{prefix}{city_letter}{body}'

# 示例
print(random_plate())  # 粤A3K7B9
print(random_plate())  # 京B8X2P1

复制package main

import (
	"fmt"
	"math/rand"
	"time"
)

func init() {
	rand.Seed(time.Now().UnixNano())
}

var provinces = []string{
	"京", "津", "沪", "渝", "冀", "豫", "云", "辽", "黑", "湘",
	"皖", "鲁", "新", "苏", "浙", "赣", "鄂", "桂", "甘", "晋",
	"蒙", "陕", "吉", "闽", "贵", "粤", "川", "青", "藏", "琼", "宁",
}

var letters = []rune{'A','B','C','D','E','F','G','H','J','K','L','M','N','P','Q','R','S','T','U','V','W','X','Y','Z'}

func randomPlate() string {
	prefix := provinces[rand.Intn(len(provinces))]
	city := string(letters[rand.Intn(len(letters))])
	body := make([]rune, 5)
	chars := append(letters, []rune{'0','1','2','3','4','5','6','7','8','9'}...)
	for i := range body {
		body[i] = chars[rand.Intn(len(chars))]
	}
	return prefix + city + string(body)
}

func main() {
	fmt.Println(randomPlate()) // 沪A3K7B9
	fmt.Println(randomPlate()) // 粤B8X2P1
}

复制const PROVINCES = [
  '京','津','沪','渝','冀','豫','云','辽','黑','湘',
  '皖','鲁','新','苏','浙','赣','鄂','桂','甘','晋',
  '蒙','陕','吉','闽','贵','粤','川','青','藏','琼','宁'
];

const LETTERS = 'ABCDEFGHJKLMNPQRSTUVWXYZ'.split('');
const DIGITS = '0123456789'.split('');
const CHARS = [...LETTERS, ...DIGITS];

function randomPlate() {
  const prefix = PROVINCES[Math.floor(Math.random() * PROVINCES.length)];
  const city = LETTERS[Math.floor(Math.random() * LETTERS.length)];
  let body = '';
  for (let i = 0; i < 5; i++) {
    body += CHARS[Math.floor(Math.random() * CHARS.length)];
  }
  return `${prefix}${city}${body}`;
}

// 示例
console.log(randomPlate()); // 粤A3K7B9
console.log(randomPlate()); // 京B8X2P1