# Python 中的数组| 系列 1（简介和功能） > 原文： [https://www.geeksforgeeks.org/array-python-set-1-introduction-functions/](https://www.geeksforgeeks.org/array-python-set-1-introduction-functions/) 除了[列表](http://quiz.geeksforgeeks.org/python-set-3-strings-lists-tuples-iterations/)之类的通用容器外，Python 的定义还可以处理具有指定数据类型的容器。 数组可以通过名为“`array`”的模块在 python 中进行处理。 当我们只需要操作特定的数据类型值时，它们就很有用。 **数组上的操作**： **1.数组（数据类型，值列表）**：-此函数用于**创建**一个数组，并在其参数中指定数据类型和值列表。 下表中提到了一些数据类型。 | 类型代码 | C 类型 | Python 类型 | 最小大小（以字节为单位） | | --- | --- | --- | --- | | `'b'` | `signed char` | `int` | 1 | | `'B'` | `unsigned char` | `int` | 1 | | `'U'` | `Py_UNICODE` | `unicode`字符 | 2 | | `'H'` | `singned short` | `int` | 2 | | `'H'` | `unsigned short` | `int` | 2 | | `'i'` | `signed int` | `int` | 2 | | `'I'` | `unsigned int` | `int` | 2 | | `'L'` | `signed long` | `int` | 4 | | `'L'` | `unsigned long` | `int` | 4 | | `'q'` | `long long` | `int` | 8 | | `'Q'` | `unsigned long long` | `int` | 8 | | `'F'` | `float` | `float` | 4 | | `'d'` | `double` | `float` | 8 | **2\. `append()`**：-此函数用于**在数组的**末尾**处添加其自变量中提到的值**。 **3\. `insert(i, x)`**：-此函数用于**在其参数中指定的位置**处添加值。 ``` # Python code to demonstrate the working of  # array(), append(), insert() # importing "array" for array operations import array # initializing array with array values # initializes array with signed integers arr = array.array('i', [1, 2, 3])  # printing original array print ("The new created array is : ",end=" ") for i in range (0, 3):     print (arr[i], end=" ") print("\r") # using append() to insert new value at end arr.append(4); # printing appended array print("The appended array is : ", end="") for i in range (0, 4):     print (arr[i], end=" ") # using insert() to insert value at specific position # inserts 5 at 2nd position arr.insert(2, 5) print("\r") # printing array after insertion print ("The array after insertion is : ", end="") for i in range (0, 5):     print (arr[i], end=" ") ``` 输出： ``` The new created array is : 1 2 3 The appended array is : 1 2 3 4 The array after insertion is : 1 2 5 3 4 ``` **4\. `pop()`**：-此函数**删除其参数中提到的位置**的元素，并将其返回。 **5\. `remove()`**：-此函数用于**删除其参数中提到的值的第一个出现**。 ``` # Python code to demonstrate the working of  # pop() and remove() # importing "array" for array operations import array # initializing array with array values # initializes array with signed integers arr= array.array('i',[1, 2, 3, 1, 5])  # printing original array print ("The new created array is : ",end="") for i in range (0,5):     print (arr[i],end=" ") print ("\r") # using pop() to remove element at 2nd position print ("The popped element is : ",end="") print (arr.pop(2)); # printing array after popping print ("The array after popping is : ",end="") for i in range (0,4):     print (arr[i],end=" ") print("\r") # using remove() to remove 1st occurrence of 1 arr.remove(1) # printing array after removing print ("The array after removing is : ",end="") for i in range (0,3):     print (arr[i],end=" ") ``` Output: ``` The new created array is : 1 2 3 1 5 The popped element is : 3 The array after popping is : 1 2 1 5 The array after removing is : 2 1 5 ``` **6\. `index()`**：-此函数返回参数中提到的值的首次出现的**索引。** **7\. `reverse()`**：-此函数**反转**数组。 ``` # Python code to demonstrate the working of  # index() and reverse() # importing "array" for array operations import array # initializing array with array values # initializes array with signed integers arr= array.array('i',[1, 2, 3, 1, 2, 5])  # printing original array print ("The new created array is : ",end="") for i in range (0,6):     print (arr[i],end=" ") print ("\r") # using index() to print index of 1st occurrenece of 2 print ("The index of 1st occurrence of 2 is : ",end="") print (arr.index(2)) #using reverse() to reverse the array arr.reverse() # printing array after reversing print ("The array after reversing is : ",end="") for i in range (0,6):     print (arr[i],end=" ") ``` Output: ``` The new created array is : 1 2 3 1 2 5 The index of 1st occurrence of 2 is : 1 The array after reversing is : 5 2 1 3 2 1 ``` **参考**： [https://docs.python.org/3/library/array.html#module-array](https://docs.python.org/3/library/array.html#module-array) 本文由 [**Manjeet Singh**](https://auth.geeksforgeeks.org/profile.php?user=manjeet_04&list=practice) 贡献。 如果您喜欢 GeeksforGeeks 并希望做出贡献，则还可以使用 [tribution.geeksforgeeks.org](http://www.contribute.geeksforgeeks.org) 撰写文章，或将您的文章邮寄至 tribution@geeksforgeeks.org。 查看您的文章出现在 GeeksforGeeks 主页上，并帮助其他 Geeks。 如果发现任何不正确的地方，或者想分享有关上述主题的更多信息，请写评论。