本文實例講述了Python常見排序操作。分享給大家供大家參考，具體如下：
字典排序
d1 = {"name":"python","bank":"icbc","country":china}# reverse是否倒序,x[1]代表value,x[0]為keyd1 = sorted(d1.items(),lambda x: x[1],reverse=True)d1 = {"name":"python","bank":"icbc","country":china}d1 = sorted(d1.items())列表排序
l = [3,2,4,5]l = sorted(l) # 升序# l = sorted(l,reverse=True) # 降序
l = [3,2,3,5,1]l = set(l) # 使用set集合去重l = list(l) #l = sorted(l) # 排序
字典列表排序
# 以age升序排序L = [ {"name":"python","age":12}, {"name":"ghj","age":10}, {"name":"java","age":17}]L = sorted(L,key=lambda x: x["age"])根據(jù)指定列表的元素順序進行排序
用途：對于取出MySQL與MongoDB的數(shù)據(jù)時，我們常常需要對數(shù)據(jù)進行位置更換順序，此時此種排序就能很好的解決我們的問題，對于下面列子中的sortList的數(shù)據(jù)我們可以使用Redis進行存儲
# 指定列表，假設(shè)存儲的是curList中的ID列表sortList = ["4","3","5","2","1"]# 當前列表curList = [{"id":"1","province":"河南"},{"id":"2","province":"河北"},{"id":"3","湖南"},{"id":"4","province":"湖北"},{"id":"5","province":"江西"}]# 根據(jù)指定列表中的ID順序，對當前列表進行排序curList = sorted(curList,key = lambda item:sortList.index(item["id"]))print(curList)# [{"id":"4","province":"湖北"},{"id":"3","province":"湖南"},{"id":"5","province":"江西"},{"id":"2","province":"河北"},{"id":"1","province":"河南"}]
希望本文所述對大家Python程序設(shè)計有所幫助。
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