feat 初始化

utils/qr.go

@@ -0,0 +1,19 @@
+package utils
+
+import (
+	"encoding/base64"
+
+	"github.com/skip2/go-qrcode"
+)
+
+func GetQRCodeIO(content string, size ...int) string {
+	s := 260 // 写死尺寸 260*260
+	if len(size) > 0 {
+		s = size[0]
+	}
+	png, err := qrcode.Encode(content, qrcode.High, s)
+	if err != nil {
+		return ""
+	}
+	return "data:image/png;base64," + base64.StdEncoding.EncodeToString(png)
+}