mirror of
https://gitee.com/Vancouver2017/luban-lite.git
synced 2025-12-29 01:06:56 +00:00
V1.0.6
This commit is contained in:
56
packages/third-party/micropython-1.13.0/docs/std-librarys/uarray.md
vendored
Executable file
56
packages/third-party/micropython-1.13.0/docs/std-librarys/uarray.md
vendored
Executable file
@@ -0,0 +1,56 @@
|
||||
## **array** – 数字数据数组
|
||||
|
||||
**array** 模块定义了一个对象类型,它可以简洁地表示基本值的数组:字符、整数、浮点数。支持代码格式: b, B, h, H, i, I, l, L, q, Q, f, d (最后2个需要支持浮点数)。
|
||||
|
||||
### 构造函数
|
||||
|
||||
#### **class array.array**(typecode[, iterable])
|
||||
用给定类型的元素创建数组。数组的初始内容由 iterable 提供,如果没有提供,则创建一个空数组。
|
||||
|
||||
```
|
||||
typecode:数组的类型
|
||||
iterable:数组初始内容
|
||||
```
|
||||
|
||||
示例:
|
||||
|
||||
```python
|
||||
>>> import array
|
||||
>>> a = array.array('i', [2, 4, 1, 5])
|
||||
>>> b = array.array('f')
|
||||
>>> print(a)
|
||||
array('i', [2, 4, 1, 5])
|
||||
>>> print(b)
|
||||
array('f')
|
||||
```
|
||||
|
||||
### 方法
|
||||
|
||||
#### **array.append**(val)
|
||||
将一个新元素追加到数组的末尾。
|
||||
|
||||
示例:
|
||||
|
||||
```python
|
||||
>>> a = array.array('f', [3, 6])
|
||||
>>> print(a)
|
||||
array('f', [3.0, 6.0])
|
||||
>>> a.append(7.0)
|
||||
>>> print(a)
|
||||
array('f', [3.0, 6.0, 7.0])
|
||||
```
|
||||
|
||||
#### **array.extend**(iterable)
|
||||
将一个新的数组追加到数组的末尾,注意追加的数组和原来数组的数据类型要保持一致。
|
||||
|
||||
示例:
|
||||
|
||||
```python
|
||||
>>> a = array.array('i', [1, 2, 3])
|
||||
>>> b = array.array('i', [4, 5])
|
||||
>>> a.extend(b)
|
||||
>>> print(a)
|
||||
array('i', [1, 2, 3, 4, 5])
|
||||
```
|
||||
|
||||
更多内容可参考 [array](http://docs.micropython.org/en/latest/pyboard/library/array.html) 。
|
||||
Reference in New Issue
Block a user