立即学习:https://edu.csdn.net/course/play/24797/282198?utm_source=blogtoedu
# import sys
# for i in sys.stdin:
# print(i)
class TestWith:
def __init__(self, tag):
self.tag = tag
print('构造函数——init——')
def __enter__(self):
print('运行__enter__方法tag=%s' % self.tag)
