upd:编码规范

util/image.go

@@ -0,0 +1,43 @@
+package util
+
+import (
+	"image"
+	"os"
+	"strings"
+)
+
+var supportImageTypes = []string{
+	".bmp",
+	".gif",
+	".jpg",
+	".jpeg",
+	".jpe",
+	".png",
+	".webp",
+	".psb",
+	".jfif",
+}
+
+// IsSupportImage 判断是否属于支持的图片文件
+func IsSupportImage(imageType string) bool {
+	for _, supportImageType := range supportImageTypes {
+		if strings.EqualFold(supportImageType, strings.ToLower(imageType)) {
+			return true
+		}
+	}
+	return false
+}
+
+// ReadImageInfo 读取一般图片文件信息
+func ReadImageInfo(filePath string) (err error, width int, height int) {
+	file, err := os.Open(filePath) // 图片文件路径
+	if err != nil {
+		return err, 0, 0
+	}
+	defer file.Close()
+	img, _, err := image.DecodeConfig(file)
+	if err != nil {
+		return err, 0, 0
+	}
+	return nil, img.Width, img.Height
+}