TDengine 3.0的文档，部分脚本无法执行成功

[fantastWang]

General Questions A general question should be related to TDengine's user's manual, user experience, milestones, business cooperations etc. Before you ask a question, please:

1. Try searching for answers in the official documentation
2. Try searching in the existing issues on GitHub
3. Try searching on tech forums such as Stack Overflow, Quora, CSDN, v2ex etc.
4. Try using online searching engines such as Google, Bing, Baidu

If all the ways above couldn't help, please clearly and concisely describe what the question is.

在跟着TDengine 3.0的文档进行学习的时候，部分脚本无法执行成功

[fantastWang]