4. Selenium2 自动化测试实战-基于Python语言-跨目录模块调用

projec/|___model/|      |___count.py|      |___new_count.py|___test.py

count.py

class A():
def add(self,a,b):
return a +b

new_count.py     

from count import A
class B (A):
def sub(self,a,b):
return a-bresult =B().add(2,5)
print(result)

test.py

import sys
sys.path .append ("./model") #将model命令添加到系统环境变量下
from model import new_counttest =new_count.B()
test.add(2,4)

输出结果：=================================7