day3-set集合

set是一个无序且不重复的元素集合


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# 数据库中原有
c1 = "a"
c2 = "b"
old_dict = {
    "#1":{ 'hostname':c1, 'cpu_count': 2, 'mem_capicity': 80 },
    "#2":{ 'hostname':c1, 'cpu_count': 2, 'mem_capicity': 80 },
    "#3":{ 'hostname':c1, 'cpu_count': 2, 'mem_capicity': 80 }
}
 
 
# cmdb 新汇报的数据
new_dict = {
    "#1":{ 'hostname':c1, 'cpu_count': 2, 'mem_capicity': 800 },
    "#3":{ 'hostname':c1, 'cpu_count': 2, 'mem_capicity': 80 },
    "#4":{ 'hostname':c2, 'cpu_count': 2, 'mem_capicity': 80 }
}
 
 
s_old = set(old_dict.keys())
s_new = set(new_dict.keys())
 
 
update_set = s_old.intersection(s_new)
print(update_set)
{'#3', '#1'}
 
delete_set = s_old.difference(s_new)
print(delete_set)
{'#2'}
 
add_set = s_new.difference(update_set)
print(add_set)
{'#4'}







posted @ 2016-01-22 10:04  Bruce_G  阅读(115)  评论(0)  编辑  收藏  举报