python 补前导零

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

给定一个IP地址作为输入，编写一个Python程序以从中删除前导零。

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，我们使用“ re”模块的 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，一个特定正则表达式模式中搜索给定的字符串( ^第三参数)中，并在找到的子图案由^REPL(第2参数)代替，计数检查和维护数这种情况经常发生。

Code

码

# Python program to Remove leading zeros from an IP address# import re module# re module provides support# for regular expressionsimport re# Make a regular expression for # finding leading zeros in ip addressregex = '\.[0]*'	# Define a function for Remove# leading zeros from an IP addressdef 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

输出量

216.8.94.196216.8.4.96

翻译自:

python 补前导零