A brief talk on the interception character function Strip,lstrip,rstrip in Python

First, causes

Today in the role control, there is a place to use Rstrip to determine whether the URL requested by the user corresponds to the URL in the database for the available permissions.

if Request.path = = X.url or Request.path.rstrip ('/') = = X.url: #精确匹配, determine if Request.path matches one of the permission tables
Take this opportunity to summarize Strip,lstrip and Rstrip in Python.

Second, Introduction

In Python, strip is used to remove the first character of a string, in the same vein that Lstrip is used to remove the left character and Rstrip to remove the right character.

Each of these three parameters can pass in a parameter that specifies the first and last characters to be removed.

It is important to note that a character array is passed in, and the compiler removes all matching characters from both ends until there are no matching characters, such as:

Visible, teststring is removed sequentially from the characters in the [' s ', ' a ', ' Y '] array until the remaining characters are no longer in the array. So the output is yes No.

Note:

When no parameters are passed in, the leading and trailing spaces are removed by default.

Lstrip and Rstrip the same principle.

Example:

>>> teststring= "Saaaay Yes No Yaaaass" >>> print Teststring.strip (' say ')    

You can understand this diagram against the selected state in the editor

The above mentioned is the whole content of this article, I hope you can like.

