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@ -359,7 +359,7 @@ ldconfig
2. 如果 Python UDF 程序执行时，通过 PYTHONPATH 引用其它的包，可以设置 taos.cfg 的 UdfdLdLibPath 变量为PYTHONPATH的内容
## Python UDF 示例代码
### Python UDF 标量函数示例 [pybitand](https://github.com/taosdata/TDengine/blob/develop/tests/script/sh/pybitand.py)
### Python UDF 标量函数示例 [pybitand](https://github.com/taosdata/TDengine/blob/3.0/tests/script/sh/pybitand.py)
pybitand 实现多列的按位与功能。如果只有一列，返回这一列。pybitand 忽略空值。
@ -372,7 +372,7 @@ pybitand 实现多列的按位与功能。如果只有一列，返回这一列
</details>
### Python UDF 聚合函数示例 [pyl2norm](https://github.com/taosdata/TDengine/blob/develop/tests/script/sh/pyl2norm.py)
### Python UDF 聚合函数示例 [pyl2norm](https://github.com/taosdata/TDengine/blob/3.0/tests/script/sh/pyl2norm.py)
pyl2norm 实现了输入列的所有数据的二阶范数，即对每个数据先平方，再累加求和，最后开方。