python 補(bǔ)前導(dǎo)零

Given an IP address as input, write a Python program to remove leading zeros from it.

給定一個(gè)IP地址作為輸入，編寫(xiě)一個(gè)Python程序以從中刪除前導(dǎo)零。

Examples:

例子：

Input: 216.08.094.196Output: 216.8.94.196Input: 216.08.004.096Output: 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(3^rd parameter), and upon finding the substring pattern is replaced by repl(2^nd parameter), count checks and maintains the number of times this occurs.

在功能子()代表子串，一個(gè)特定正則表達(dá)式模式中搜索給定的字符串( ^第三參數(shù))中，并在找到的子圖案由^REPL(第2參數(shù))代替，計(jì)數(shù)檢查和維護(hù)數(shù)這種情況經(jīng)常發(fā)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(bǔ)前導(dǎo)零

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