Python 排序

dicts = {"4":{"key1":"a","num":1},
"2":{"key1":"a","num":2},
"3":{"key1":"a","num":3},
"1":{"key1":"a","num":4}}
items = sorted(dicts.items(), key=lambda d: d[1]['num'], reverse=True)

items = dicts.items()
items.sort()

sorted(...)
sorted(iterable, cmp=None, key=None, reverse=False) --> new sorted list

#按照key进行排序
sorted(dict1.items(), key=lambda d: d[0])
#按照value进行排序
sorted(dict1.items(), key=lambda d: d[1])