例1：
package main
import (
"fmt"
"regexp"
)
func main() {
s1 := "Z22WhkC9K$N#wRIbBitpQYUFJqd%d*QVz5Ir7j&CLqz3@FOC2x5CD6ZzvhNdk@5Vv1QU^DHbSc&nBs%4!94ngFH0BJ6GxtXg2$T"
reg := regexp.MustCompile(`[^a-zA-Z0-9]`)
fmt.Println(reg.FindAllString(s1, -1))
reg = regexp.MustCompile(`[a-zA-Z0-9]`)
fmt.Println(reg.FindAllString(s1, -1))
reg = regexp.MustCompile(`[a-z]`)
fmt.Println(reg.FindAllString(s1, -1))
reg = regexp.MustCompile(`[A-Z]`)
fmt.Println(reg.FindAllString(s1, -1))
reg = regexp.MustCompile(`[0-9]`)
fmt.Println(reg.FindAllString(s1, -1))
s2 := "河北省河南省hbshns湖北省hbshns湖南省"
reg = regexp.MustCompile("[\u4e00-\u9fa5]")
fmt.Println(reg.FindAllString(s2, -1))
reg = regexp.MustCompile(`[\p{Han}]+`)
fmt.Printf("%q\n", reg.FindAllString(s2, -1))
reg = regexp.MustCompile(`[\P{Han}]+`)
fmt.Printf("%q\n", reg.FindAllString(s2, -1))
}d:\goprojects\src\day1\正则\exp2>go run main.go免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
