题解 | #数字颠倒#

go 版本

package main

import (
	"fmt"
	"strconv"
)

func main() {
	a := 0
	n, _ := fmt.Scan(&a)
	if n == 0 {
		fmt.Println(a)
		return
	} else {
		res := ""
		for a != 0 {
			remainder := a % 10
			a = a / 10
			res += strconv.Itoa(remainder)
		}

		fmt.Println(res)
	}
}

python版本

scan = input()

print(scan[::-1])