3.5 键值对的读取

文件：

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
log-bin=py-mysql-bin
character-set-server=utf8
collation-server=utf8_general_ci
log-error=/var/log/mysqld.log
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid
[client]
default-character-set=utf8

1.根据某个节点下的键定向查 值

import configparser
machine = configparser.ConfigParser()
machine.read('new.ini',encoding = 'utf-8')
value = machine.get('mysqld','datadir')
print(value)

2.输出这个节点下的所有键和值

import configparser
machine = configparser.ConfigParser()
machine.read('new.ini',encoding = 'utf-8')
mysq_safe = machine.items('mysqld_safe')
# 这个得到的是一个列表，列表里是每个二元的元组，元组第0个是键，第一个是值
for key,value in mysq_safe:
    print(key,value)