生成器-文件输入监听器

 

def monitor(filename):
    f = open(filename, encoding='utf-8')
    while 1:
        line = f.readline().strip()
        if line:
            yield line.strip()

m_g = monitor('file')
for i in m_g:
    print(i)

# while 1:
#     print(m_g.__next__())