python from import as
时间: 2023-09-18 18:09:27 浏览: 68
import from as 是 Python 中的导入语句,用于从一个模块中导入指定的函数或变量,并为其指定别名。例如:
from math import sqrt as square_root
这条语句从 math 模块中导入 sqrt 函数,并将其重命名为 square_root。这样,在代码中就可以使用 square_root 来调用该函数,而不是使用原来的函数名 sqrt。
相关问题
Python中import as
在Python中,可以使用`import as`语法来导入模块并给模块或模块成员起一个别名。这样可以方便地在代码中使用别名来引用模块或模块成员,以减少代码的冗长性和提高可读性。
以下是一个示例:
```python
from math import sqrt as square_root
print(square_root(16)) # 输出:4.0
```
在上面的示例中,我们使用`import`语句导入了`math`模块,并将`sqrt`函数起了一个别名`square_root`。然后,我们可以使用`square_root`来调用`sqrt`函数,而不需要使用完整的函数名。
python from import
In Python, the `import` statement is used to include modules or packages in your code. It allows you to use functions, classes, and variables defined in those imported modules.
The basic syntax for importing in Python is:
```
import module_name
```
You can also import specific functions or variables from a module using the `from` keyword. Here's the syntax for that:
```
from module_name import function_name, variable_name
```
This allows you to directly use the imported function or variable without referencing the module name.
You can also import the entire module and give it an alias using the `as` keyword. Here's an example:
```
import module_name as alias
```
This allows you to refer to the module using the given alias instead of its original name.
I hope this answers your question. Let me know if you have any more doubts!