const express = require('express');
const router = express.Router();
const svgCaptcha = require('svg-captcha');
// 直接是字母的
router.get('/', (req, res, next) => {
    const captcha = svgCaptcha.create({
        size: 6,
        ignoreChars: '0o1liO',
        noise: '3',
        color: true,
        background: '#c67728'
    });
    req.session.captcha = captcha.text;
    res.type('svg');
    res.status(200).send(captcha.data);
})
// 数字计算的
router.get('/calculate', (req, res, next) => {
    const captcha = svgCaptcha.createMathExpr({
        size: 6,
        ignoreChars: '0o1liO',
        noise: '3',
        color: true,
        background: '#c67728'
    });
    req.session.captcha = captcha.text;
    res.type('svg');
    res.status(200).send(captcha.data);
})
module.exports = router;