python字典(dict)遍历方法

for 遍历

    for item in redis_info:
        print ("%s:" % item,redis_info[item])

运行结果：

('aof_enabled:', 0)
('db0:', {'keys': 9, 'expires': 0, 'avg_ttl': 0})
('multiplexing_api:', 'epoll')
('redis_version:', '3.2.9')
('sync_partial_ok:', 1)
('loading:', 0)

items 遍历

    for (k1,v1) in redis_info.items():
        print ('%s' % k1,v1)

运行结果：

('aof_enabled:', 0)
('db0:', {'keys': 9, 'expires': 0, 'avg_ttl': 0})
('multiplexing_api:', 'epoll')
('redis_version:', '3.2.9')
('sync_partial_ok:', 1)
('loading:', 0)

iteritems遍历：

    for (k1,v1) in redis_info.iteritems():
        print ('%s:' % k1,v1)

运行结果

('aof_enabled:', 0)
('db0:', {'keys': 9, 'expires': 0, 'avg_ttl': 0})
('multiplexing_api:', 'epoll')
('redis_version:', '3.2.9')
('sync_partial_ok:', 1)
('loading:', 0)