我是从如下地址https://github.com/joe011/python/blob/master/check_ip138.py复制的相同代码运行，python版本是3.6.0,为了避免原有代码缩进的 ...

Sometimes, a problem can temporarily stump even experienced Exchange 5.5 administrators. For instance, your servers all seem to work, your users notice no problems ...

This is an error in the spelling or grammar used when coding. Missing a letter, character or forgetting to include inverted commas/speech marks are common examples of ...