[Python] multiple modules use global variables. One py file uses the data variables of another py file (test code)

Catalog

• • Realize the idea
  • Code routines
  • • `globalManger.py`
    • `module1.py`
    • `module2.py`
    • `main.py`
  • Operation method and effect
  • summary

Welcome to your attention 『Python』 series , Ongoing update
Welcome to your attention 『Python』 series , Ongoing update

Realize the idea

I've been learning for so long python, I really didn't think of sharing data in multiple modules at the beginning ·····

Today, a writer has encountered difficulties in this field , Let me also study this thing .

Finally, the idea is as follows ：

• Set up a management module globalManger.py, Yes 2 A way Set and get Key value pair .
• stay moudle1.py Set key value pairs in , stay moudle2.py Get the data contents of key value pairs in .
• main.py call moudle1.py and moudle2.py, It can be realized in moudle2 Call in moudle1 The data of

Code routines

globalManger.py

# @Time : 2022/6/19 9:09
# @Author : Nanli 
# @FileName: globalManger.py
# Initialize an empty key value pair Dictionary 
def _init():
global _global_dict
_global_dict = {
}
# Set dictionary contents 
def set_value(name, value):
_global_dict[name] = value
# Read the contents of the dictionary 
def get_value(name, defValue=None):
try:
return _global_dict[name]
except KeyError:
return defValue

module1.py

# @Time : 2022/6/19 9:05
# @Author : Nanli 
# @FileName: module1.py
#moudle1 Set up the data , The back can be in moudle2 Get data in 
import sys
import globalManger as gm
gm._init()# Initialize dictionary object , It only needs to be run once , All the following data contents will be placed in the new dictionary 
gm.set_value(' Nan Li's age ', 22)# Add a key name to the dictionary ' Nan Li's age ', The key value is 22
gm.set_value(' Gender of Nanli ', " male ")

module2.py

# @Time : 2022/6/19 9:05
# @Author : Nanli 
# @FileName: module2.py
#module2 Can get moudle1 Set data 
import globalManger as gl
name = gl.get_value(' Nan Li's age ')
score = gl.get_value(' Gender of Nanli ')
print(" Nan Li's age ：%s\n Gender of Nanli :%s" % (name, score))

main.py

# @Time : 2022/6/19 9:06
# @Author : Nanli 
# @FileName: main.py
import module1
print("moudle1 Data setting is completed ")
import module2
print("moudle2 Finished reading and outputting data ")

Operation method and effect

Direct operation main.py

summary

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Copyright notice ：

I found you far away @mzh Original works , Reprint must be marked with the original link

Copyright 2022 mzh

Crated：2022-1-10

Welcome to your attention 『Python』 series , Ongoing update
Welcome to your attention 『Python』 series , Ongoing update
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