图片处理模块

services/utils.go

@@ -2,6 +2,7 @@ package services
 
 import (
 	"encoding/json"
+	"fmt"
 	"path/filepath"
 	"strings"
 )
@@ -31,3 +32,23 @@ func ToJSON(v interface{}) ([]byte, error) {
 func ParseJSON(data []byte, v interface{}) error {
 	return json.Unmarshal(data, v)
 }
+
+// formatSize 格式化文件大小为可读字符串
+func formatSize(bytes int64) string {
+	const (
+		KB = 1024
+		MB = KB * 1024
+		GB = MB * 1024
+	)
+
+	switch {
+	case bytes >= GB:
+		return fmt.Sprintf("%.2f GB", float64(bytes)/float64(GB))
+	case bytes >= MB:
+		return fmt.Sprintf("%.2f MB", float64(bytes)/float64(MB))
+	case bytes >= KB:
+		return fmt.Sprintf("%.2f KB", float64(bytes)/float64(KB))
+	default:
+		return fmt.Sprintf("%d B", bytes)
+	}
+}