摘要:
解决方法 double_node = client.get_node("ns=2;s=Demo.Static.Scalar.Double") # returns a Node-Class dv = ua.DataValue(ua.Variant(200.0, ua.VariantType.Doubl 阅读全文
摘要:
w3school 的解释: The is keyword is used to test if two variables refer to the same object. The test returns True if the two objects are the same object. 阅读全文