init

2026-07-26 00:09:57 +08:00
commit 059be96536
134 changed files with 19678 additions and 0 deletions
@@ -0,0 +1,66 @@
+package util
+
+import (
+	"strconv"
+	"strings"
+)
+
+const (
+	// BYTE 字节
+	BYTE = 1 << (10 * iota)
+	// KILOBYTE 千字节
+	KILOBYTE
+	// MEGABYTE 兆字节
+	MEGABYTE
+	// GIGABYTE 吉字节
+	GIGABYTE
+	// TERABYTE 太字节
+	TERABYTE
+	// PETABYTE 拍字节
+	PETABYTE
+	// EXABYTE 艾字节
+	EXABYTE
+)
+
+// Bytefmt returns a human-readable byte string of the form 10M, 12.5K, and so forth.  The following units are available:
+//	E: Exabyte
+//	P: Petabyte
+//	T: Terabyte
+//	G: Gigabyte
+//	M: Megabyte
+//	K: Kilobyte
+//	B: Byte
+// The unit that results in the smallest number greater than or equal to 1 is always chosen.
+func Bytefmt(bytes uint64) string {
+	unit := ""
+	value := float64(bytes)
+
+	switch {
+	case bytes >= EXABYTE:
+		unit = "E"
+		value = value / EXABYTE
+	case bytes >= PETABYTE:
+		unit = "P"
+		value = value / PETABYTE
+	case bytes >= TERABYTE:
+		unit = "T"
+		value = value / TERABYTE
+	case bytes >= GIGABYTE:
+		unit = "G"
+		value = value / GIGABYTE
+	case bytes >= MEGABYTE:
+		unit = "M"
+		value = value / MEGABYTE
+	case bytes >= KILOBYTE:
+		unit = "K"
+		value = value / KILOBYTE
+	case bytes >= BYTE:
+		unit = "B"
+	case bytes == 0:
+		return "0B"
+	}
+
+	result := strconv.FormatFloat(value, 'f', 2, 64)
+	result = strings.TrimSuffix(result, ".0")
+	return result + unit
+}