python整數轉換字符串

Given a string with digits and we have to convert the string to its equivalent list of the integers in Python.

給定一個帶有數字的字符串，我們必須將該字符串轉換為Python中與之等效的整數列表。

Example:

例：

Input:str1 = "12345"Output:int_list = [1, 2, 3, 4, 5]Input:str1 = "12345ABCD"Output:ValueError

Note: The string must contain only digits between 0 to 9, if there is any character except digits, the program will through a ValueError.

注意：該字符串只能包含0到9之間的數字，如果除數字之外還有任何其他字符，則程序將通過ValueError進行操作 。

如何將字符(僅數字)轉換為整數？ (How to convert character (only digit) to integer?)

To convert a character (that is digit only like: '0', '1', '2', '3', '4', '5', '6', '7', '8', '9') to integer, we use int() function - which is a library function in Python. int() returns integer value equivalent to given character i.e. digit in character form.

轉換字符(僅是數字，例如： “ 0”，“ 1”，“ 2”，“ 3”，“ 4”，“ 5”，“ 6”，“ 7”，“ 8”，“ 9” )轉換為整數，我們使用int()函數-這是Python中的庫函數。 int()返回等于給定字符的整數值，即字符形式的數字。

print (int('0')) print (int('1')) print (int('2')) print (int('3')) print (int('4')) print (int('5')) print (int('6')) print (int('7')) print (int('8')) print (int('9'))

Output

輸出量

0 1 2 3 4 5 6 7 8 9

Python程序將字符串轉換為整數列表 (Python program to convert a string to integers list)

Here, we have a string "12345" and we are converting it to integers list [1, 2, 3, 4, 5].

在這里，我們有一個字符串“ 12345” ，并將其轉換為整數列表[1、2、3、4、5] 。

# program to convert string to integer list # language: python3# declare a list str1 = "12345"# list variable to integeres int_list =[]# converting characters to integers for ch in str1:int_list.append(int(ch))# printing the str_list and int_list print ("str1: ", str1) print ("int_list: ", int_list)

Output

輸出量

str1: 12345 int_list: [1, 2, 3, 4, 5]

ValueError (ValueError)

If there is any character except the digits, there will be an error "ValueError: invalid literal for int() with base 10".

如果除數字外沒有其他字符，將出現錯誤“ ValueError：int()的基數為10的無效文字” 。

Program with Error:

出現錯誤的程序：

# program to convert string to integer list # language: python3# declare a list str1 = "12345ABCD"# list variable to integeres int_list =[]# converting characters to integers for ch in str1:int_list.append(int(ch))# printing the str_list and int_list print ("str1: ", str1) print ("int_list: ", int_list)

Output

輸出量

Traceback (most recent call last):File "/home/main.py", line 12, in int_list.append(int(ch)) ValueError: invalid literal for int() with base 10: 'A'

翻譯自: https://www.includehelp.com/python/convert-a-string-to-integers-list.aspx

python整數轉換字符串

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