golang使用正則表達式使用

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))

}