题解 | #字符串排序#

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

void (async function () {
    // Write your code here
    while ((line = await readline())) {
        let tokens = line.split("");
        // 先把特殊字符提取出来,用obj存这些特殊字符，key就是他们的位置，value就是特殊字符值
        obj = {};
        let str = "";
        for (let i = 0; i < tokens.length; i++) {
            if (tokens[i].match(/[A-Za-z]/g)) {
                str += tokens[i];
            } else {
                obj[i] = tokens[i];
            }
        }
        let str2 = str.split('')
        str2.sort((a, b) => {
            return a.toUpperCase()<b.toUpperCase()?-1:1
        });
        // 把特殊符号插回去
        let arr = str2;
        for (let k in obj) {
            arr.splice(parseInt(k), 0, obj[k]);
        }
        console.log(arr.join(""));
    }
})();