题解 | 四季

const rl = require('readline').createInterface({input: process.stdin})
const iter = rl[Symbol.asyncIterator]()
const readline = async () => (await iter.next()).value

void async function () {
    const lines = await readline()
    const month = parseInt(lines.substring(4, 6))
    if (lines.length === 6) {
        if (month <= 5 && month >= 3) {
            console.log('spring')
        } else if (month <= 8 && month >= 6) {
            console.log('summer')
        } else if (month <= 11 && month >= 9) {
            console.log('autumn')
        } else if (month <= 2 && month >= 1 || month === 12) {
            console.log('winter')
        }

    } else {
        console.log('输入字符串非法')
    }
    rl.close()
}()