Pass Placeholder Statements in Python

Preface:

Python pass is the null statement, which is intended to maintain the structural integrity of the program; pass doesn't do anything and is generally used as a placeholder statement.

The Python pass statement has the following syntax:

pass

Test Example:

an actual example

#!/usr/bin/python
# -*- coding: UTF-8 -*-
# Output every letter of Python
for letter in 'Python': 
    if letter == 'h': 
        pass
        print 'This is the
        pass block.' print 'Current letter :', letter
        print "Good bye!"

Results of the above example execution:

Current letter : P
Current letter : y
Current letter : t
Here's the pass block.
Current letter : h
Current letter : o
Current letter : n
Good bye!

The Python version is the main one:

Scene:The pass statement can be used as a placeholder in a loop or judgment logic statement to maintain structural integrity and to save additional code for later use.

passstatement
while Requirements for establishment:
    if i%7==0:
        pass
    else
        print('Current traversal value: %s' % (value))

The code is as follows:

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import json

day=0;

jsonString='[{"day":"7","prize":"Prize 2 for 1, oversized mouse pad/customized fridge sticker"},{"day":"14","prize":"3 choices of prizes, oversized mouse pad/customized fridge sticker/year of the tiger notebook"},{"day":"21","prize":"3 out of 5 prizes, oversized mouse pads/customized fridge stickers/Year of the Tiger notebooks/shoulder bags/WuKong Bear figures"}]';
jsonObject = (jsonString)

# Loop nested statements
while day<=21:
    day+=1
    if day%7==0:
        index=int(day/7)
        item=jsonObject[index-1]
        print('Bonus for %successive %sday of more writing: %s\r\n' % (item['day'],item['prize']))
    else:
        pass

The effect is as follows:

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