The meaning and function of pass statement in python (example analysis)

I believe that everyone has just started to come into contact with the python language. Today, this article will take you to understand a pass statement that is often used in the python language. Everyone must be curious about What is the function of pass in python, Next, I will introduce you to the pass statement.

Python pass statementThis is an empty statement. This statement is to maintain the integrity of the program structure. pass does not do anything and is generally used as a placeholder statement.

The syntax format of pass in python is as follows:

pass

(When you are writing a program and the execution statement part of the idea has not been completed, you can use the pass statement at this time To occupy a place, it can also be regarded as a mark, which is the code to be completed later.)

Next, let me give an example:

#!/usr/bin/python
# -*- coding: UTF-8 -*- 
# 输出 Python 的每个字母
for letter in 'Python':
   if letter == 'h':
      pass
      print '这是 pass 块'
   print '当前字母 :', letter
print "Good bye!"

is used in the above example. The output result of the pass statement is as follows

当前字母 : P
当前字母 : y
当前字母 : t
这是 pass 块
当前字母 : h
当前字母 : o
当前字母 : n
Good bye!

The pass statement is just an empty statement, which plays a role such as a position. It is quite simple to understand.

This article describes the definition and function of pass, and gives an example to help understand the pass statement. I hope this article can bring some help to you who are learning python.

For more related knowledge, please visit the Python tutorial column on the php Chinese website.

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