简单的模拟linux tailf 命令时时显示文件数据

只实现了 tailf  显示数据

import time
import sys
def load(objf):
    for i in objf:
        try :
            yield i
        except:
            pass
def read(path):
    with open(path) as f:
        while True:
            yield from load(f)
            time.sleep(1)
if __name__ == "__main__":
    r = read(sys.argv[1]) #传入参数 返回生成器
    for i in r:
        print(i)