ProgrammerSought

from xxx import yyy

from xxx import *

import xxx

import has the function of preventing the module from being re-imported. If the referenced module is changed during the running process, it needs to be executed.

from imp import reload

reload(xxx）

lib.py

age=10

from lib import age
import lib
age = 5 #定义的局部变量，而不是模块中的变量
print(age)
print(lib.age)