go语言如何删除切片

func main(){

    var ss []string;

    fmt.Printf("[ local print ]\t:\t length:%v\taddr:%p\tisnil:%v\n",len(ss),ss, ss==nil)   

    print("func print",ss)

    //切片尾部追加元素append elemnt

    for i:=0;i<10;i++{

        ss=append(ss,fmt.Sprintf("s%d",i));

    }

    fmt.Printf("[ local print ]\t:\tlength:%v\taddr:%p\tisnil:%v\n",len(ss),ss, ss==nil)   

    print("after append",ss)

    //删除切片元素remove element at index

    index:=5;

    ss=append(ss[:index],ss[index+1:]...)

    print("after delete",ss)

    //在切片中间插入元素insert element at index;

    //注意：保存后部剩余元素，必须新建一个临时切片

    rear:=append([]string{},ss[index:]...)

    ss=append(ss[0:index],"inserted")

    ss=append(ss,rear...)

    print("after insert",ss)

}

func print(msg string,ss []string){

    fmt.Printf("[ %20s ]\t:\tlength:%v\taddr:%p\tisnil:%v\tcontent:%v",msg,len(ss),ss, ss==nil,ss)   

    fmt.Println()

}

------

Running...

[ local print ]    :     length:0    addr:0x0    isnil:true

[           func print ]    :    length:0    addr:0x0    isnil:true    content:[]

[ local print ]    :    length:10    addr:0xc208056000    isnil:false

[         after append ]    :    length:10    addr:0xc208056000    isnil:false    content:[s0 s1 s2 s3 s4 s5 s6 s7 s8 s9]

[         after delete ]    :    length:9    addr:0xc208056000    isnil:false    content:[s0 s1 s2 s3 s4 s6 s7 s8 s9]

[         after insert ]    :    length:10    addr:0xc208056000    isnil:false    content:[s0 s1 s2 s3 s4 inserted s6 s7 s8 s9]

Success: process exited with code 0.