golang 追加语法错误：标签后缺少语句

Question

    fmt.Print("Text to send: ")

    text, _ := readerConsole.ReadString('\n')

    sizen := (int)(unsafe.Sizeof(text))

    fmt.Print(sizen)

    var bs []byte

    binary.BigEndian.PutUint32(bs, sizen)

    b := []byte(text)

    a: = append(bs, b...)

Go格式化程序在追加时说错误“语法错误：标签后缺少语句”

Answer 1

有语法错误伙伴。应该是a := append(bs, b...)伴侣