英文反转，中文反转，回文测试

package main
import (
    "fmt"
)
func testReverStringv1()  {
    /*反转英文*/
    var (
        str = "hello"
        bytes []byte = []byte(str)//转换
    )
    fmt.Println("bytes =",bytes)
    for i:=0;i<len(str)/2;i++ {
        tmp := bytes[len(str)-i-1]
        fmt.Println("bytes[len(str)-i-1]=======",bytes[len(str)-i-1])
        fmt.Println("bytes[len(str)-i-1]=======",string(bytes[len(str)-i-1]))
        bytes[len(str)-i-1] = bytes[i]
        fmt.Println("bytes[i]====",bytes[i])
        fmt.Println("bytes[i]====",string(bytes[i]))
        bytes[i]= tmp
    }
    str = string(bytes)
    fmt.Println("str = ",str)
}
func testReverStringv2()  {
    var (
        str = "你好呀sss"
        r []rune = []rune(str)
    )
    fmt.Println("before str =",str)
    //中文要使用转换后的r的长度
    for i := 0;i<len(r)/2;i++{
        tmp := r[len(r)-i-1]
        fmt.Println("tmp ====",tmp)
        r[len(r)-i-1] = r[i]
        fmt.Println("r[i] =====",r[i])
        r[i] = tmp
    }
    str = string(r)
    fmt.Println("after str = ",str)
}
func testHuiWens()  {
    var (
        str = "你好世界界世s好你"
        r []rune = []rune(str)
    )
    for i := 0;i<len(r)/2;i++ {
        tmp := r[len(r)-i-1]
        r[len(r)-i-1] = r[i]
        r[i] = tmp
    }
    str2 := string(r)
    if str2 == str {
        fmt.Println(str2,"is huiwen")
    }else {
        fmt.Println(str2,"is not huiwen")
    }
}
func main()  {
    //testReverStringv1()
    //testReverStringv2()
    testHuiWens()
}