User talk:Zhangsongyang

April 2016
Hello, I'm Non-dropframe. I wanted to let you know that I reverted one of your recent contributions —the one you made with this edit to MQTT— because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. -- Non-Dropframe   talk   07:34, 13 April 2016 (UTC)