string 在 Go 中将字节转换为字符串
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Convert a byte to a string in Go
提问by ZHAO Xudong
I am new to Go and trying to do something like this:
我是 Go 的新手并试图做这样的事情：
bytes := [4]byte{1,2,3,4}
str := convert(bytes)
//str == "1,2,3,4"
I searched a lot and really have no idea how to do this.
我搜索了很多，真的不知道如何做到这一点。
I know this will not work:
我知道这行不通：
str = string(bytes[:])
回答by Didier Spezia
Not the most efficient way to implement it, but you can simply write:
不是实现它的最有效方法，但您可以简单地编写：
func convert( b []byte ) string {
s := make([]string,len(b))
for i := range b {
s[i] = strconv.Itoa(int(b[i]))
}
return strings.Join(s,",")
}
to be called by:
被称为：
bytes := [4]byte{1,2,3,4}
str := convert(bytes[:])
回答by Stephan Dollberg
If you are not bound to the exact representation then you can use fmt.Sprint:
如果您不受确切表示的约束，那么您可以使用fmt.Sprint：
fmt.Sprint(bytes) // [1 2 3 4]
On the other side if you want your exact comma style then you have to build it yourself using a loop together with strconv.Itoa.
另一方面，如果您想要确切的逗号样式，则必须使用循环和strconv.Itoa.
回答by Dan Garland
Similar to inf's suggestion but allowing for commas:
类似于 inf 的建议，但允许使用逗号：
fmt.Sprintf("%d,%d,%d,%d", bytes[0], bytes[1], bytes[2], bytes[3])
fmt.Sprintf("%d,%d,%d,%d", bytes[0], bytes[1], bytes[2], bytes[3])
回答by BlockedMan
hex.EncodeToString(input)may work for you.
hex.EncodeToString(input)可能对你有用。
