如何在Go中将[4] uint8转换为uint32?
如何将go的类型从uint8转换为unit32?
只需代码:
package mainimport (
"fmt"
)
func main() {
uInt8 := []uint8{0,1,2,3}
var uInt32 uint32
uInt32 = uint32(uInt8)
fmt.Printf("%v to %v\n", uInt8, uInt32)
}
〜> 6g test.go && 6l -o test test.6 && ./test
test.go:10:无法将uInt8(类型[] uint8)转换为uint32类型
回答:
package mainimport (
"encoding/binary"
"fmt"
)
func main() {
u8 := []uint8{0, 1, 2, 3}
u32LE := binary.LittleEndian.Uint32(u8)
fmt.Println("little-endian:", u8, "to", u32LE)
u32BE := binary.BigEndian.Uint32(u8)
fmt.Println("big-endian: ", u8, "to", u32BE)
}
输出:
little-endian: [0 1 2 3] to 50462976big-endian: [0 1 2 3] to 66051
Go 二进制包功能通过一系列移位实现。
func (littleEndian) Uint32(b []byte) uint32 { return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
}
func (bigEndian) Uint32(b []byte) uint32 {
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
}
以上是 如何在Go中将[4] uint8转换为uint32? 的全部内容, 来源链接: utcz.com/qa/400949.html