题解 | 在字符串中找出连续最长的数字串

package main

import (
	"fmt"
	"unicode"
)

func main() {
	var s string
	fmt.Scan(&s)
	numString := make([]string, 0)
	start := 0
	count := 0
	max := 0
	for i, v := range s {
		if unicode.IsDigit(v) {
			if count == 0 {
				start = i
			}
			count++
		} else {
			if max < count {
				max = count
                numString = append(numString, s[start:start+count])    
			}
			count = 0
		}
		if i == len(s)-1 && unicode.IsDigit(v) {
			if max < count {
				max = count
			}
			numString = append(numString, s[start:start+count])
		}
	}
	outstring := ""
	for _, v := range numString {
		if len(v) == max {
			outstring += v
		}
	}
	fmt.Printf("%s,%d", outstring, max)
}