编辑代码

package main

import (
	"fmt"
	"strings"
)

func main() {
	var input string
	fmt.Print("请输入一个字符串：")
	fmt.Scanln(&input)

	var output string
	for i, c := range input {
		if i%2 != 0 {
			output += string(c) + "*"
		} else{
			output += string(c) + " "
	}
    }
	fmt.Println("处理后的字符串为：", strings.TrimRight(output, " "))
}