7.28复习题

1、查询端口的命令

lsof -i：端口号

2、查询进程的命令

ps查询进程信息

3、如果一个日志文件一直在写入新的内容，怎么查看文件最后的内容

tail  -n 文件名

 

4、lists={"status":0,"msg":"ok","datas":[{"language":["Go",{"index":["python",{"work":"测试工程师"}]}]}]}
获取go python和测试工程师

lists={"status":0,"msg":"ok","datas":[{"language":["Go",{"index":["python",{"work":"测试工程师"}]}]}]}
print(lists['datas'][0]['language'][0])
print(lists['datas'][0]['language'][1]['index'][0])
print(lists['datas'][0]['language'][1]['index'][1]["work"])