上传

data.go

@@ -0,0 +1,34 @@
+package imago
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"unsafe"
+)
+
+// Str2bytes Fast convert
+func Str2bytes(s string) []byte {
+	x := (*[2]uintptr)(unsafe.Pointer(&s))
+	h := [3]uintptr{x[0], x[1], x[1]}
+	return *(*[]byte)(unsafe.Pointer(&h))
+}
+
+// Bytes2str Fast convert
+func Bytes2str(b []byte) string {
+	return *(*string)(unsafe.Pointer(&b))
+}
+
+// bytes82uint64 字节数(大端)组转成int(无符号的)
+func bytes82uint64(b []byte) (uint64, error) {
+	if len(b) == 9 {
+		b = b[:7]
+	}
+	if len(b) == 8 {
+		bytesBuffer := bytes.NewBuffer(b)
+		var tmp uint64
+		err := binary.Read(bytesBuffer, binary.BigEndian, &tmp)
+		return tmp, err
+	}
+	return 0, fmt.Errorf("%s", "bytes lenth is invaild!")
+}