Update app.py

app.py

@@ -73,7 +73,7 @@ def check_solarplant_broken(image):
 def greet(img):
     print(type(img))
     # lns = read_license_number(img)
-    lns = [1,2,3]
+    lns = ['1','2','3']
     if len(lns):
         # return (seg,
         return ("車牌： " + '; '.join(lns) + "\n\n" \