python 補前導零
Given an IP address as input, write a Python program to remove leading zeros from it.
給定一個IP地址作為輸入，編寫一個Python程序以從中刪除前導零。
Examples:
例子：
Input: 216.08.094.196
Output: 216.8.94.196
Input: 216.08.004.096
Output: 216.8.4.96
In this program, we are using sub() method of "re" module.
在此程序中，我們使用“ re”模塊的 sub()方法 。
Syntax:
句法：
re.sub(pattern, repl, string, count=0, flags=0)
The sub() in the function stands for SubString, a certain regular expression pattern is searched in the given string(3rd parameter), and upon finding the substring pattern is replaced by repl(2nd parameter), count checks and maintains the number of times this occurs.
在功能子()代表子串，一個特定正則表達式模式中搜索給定的字符串( 第三參數)中，并在找到的子圖案由REPL(第2參數)代替，計數檢查和維護數這種情況經常發生。
Code
碼
# Python program to Remove leading zeros from an IP address
# import re module
# re module provides support
# for regular expressions
import re
# Make a regular expression for
# finding leading zeros in ip address
regex = '\.[0]*'
# Define a function for Remove
# leading zeros from an IP address
def removeLeadingZeros(ip):
modified_ip = re.sub(regex, '.', ip)
print(modified_ip)
# Main code
if __name__ == '__main__' :
# Enter ip address
ip = "216.08.094.196"
# call function
removeLeadingZeros(ip)
ip = "216.08.004.096"
removeLeadingZeros(ip)
Output
輸出量
216.8.94.196
216.8.4.96
翻譯自: https://www.includehelp.com/python/python-regex-program-to-remove-leading-zeros-from-an-ip-address.aspx
python 補前導零
