03 with上下文管理

"""
@作者: egon老湿
@微信:18611453110
@专栏: https://zhuanlan.zhihu.com/c_1189883314197168128
"""
# 文件对象又称为文件句柄

# with open('a.txt',mode='rt') as f1: # f1=open('a.txt',mode='rt')
# res=f1.read()
# print(res)

with open('a.txt',mode='rt') as f1,\
open('b.txt',mode='rt') as f2:
res1=f1.read()
res2=f2.read()
print(res1)
print(res2)

# f1.close()
# f2.close()