? 執(zhí)行后發(fā)現(xiàn) hash?值是亂碼的這個是為什么？

func?(b?*Block)SetHash(){
???//時間戳轉(zhuǎn)城?字節(jié)數(shù)組
???timestamp?:=[]byte(strconv.FormatInt(b.Timestamp,10))
???//[]byte?是字符數(shù)組類型??用join?連接起來
???headers:=?bytes.Join([][]byte{b.PrevBlockHash,b.Data,timestamp},[]byte{})
???//fmt.Println(headers)
???hash:=?sha256.Sum256(headers)
???b.Hash?=?hash[:]
}