题解 | #字符串排序#

while(line = readline()){
    let res = '';
    let arr = line.split('');
    let sorted = [];
    for(let i = 0; i < 26; i++){
        for(let j = 0; j < arr.length; j++){
            if(arr[j].charCodeAt(0) == 65 + i || arr[j].charCodeAt(0) == 97 + i){
                sorted.push(arr[j])
            }
        }
    }
    for(let i = 0; i < arr.length; i++){
        if(!/[A-Za-z]/g.test(arr[i])){
            sorted.splice(i,0,arr[i])
        }
    }
    console.log(sorted.join(''));
}