如何在Go中将字节数组转换为字符串

[]byte to string raises an error. string([]byte[:n]) raises an error too. By the way, for example, sha1 value to string for filename. Does it need utf-8 or any other encoding set explicitly? Thanks!

In Go you convert a byte array (utf-8) to a string by doing string(bytes) so in your example, it should be string(byte[:n]) assuming byte is a slice of bytes.

First you're getting all these negatives reviews because you didn't provided any code. Second, without a good example. This is what i'd do

var Buf bytes.Buffer
Buf.Write([]byte)
myString := Buf.String()
Buf.Reset() // Reset the buffer to reuse later

or better yet

myString := string(someByteArray[:n])

see here also see @JimB's comment

That being said if you help that targets your program, please provide and example of what you've tried, the expect results, and error.

I am not sure that i understand question correctly, but may be:

var ab20 [20]byte = sha1.Sum([]byte("filename.txt"))
var sx16 string = fmt.Sprintf("%x", ab20)
fmt.Print(sx16)

https://play.golang.org/p/haChjjsH0-

The easiest method I use to convert byte to string is to:

myString := string(myBytes[:])

We can just guess what is wrong with your code because no meaningful example is provided. But first what I see that string([]byte[:n]) is not valid at all. []byte[:n] is not a valid expression because no memory allocated for the array. Since byte array could be converted to string directly I assume that you have just a syntax error.

Shortest valid is fmt.Println(string([]byte{'g', 'o'}))