如何对嵌套的Python字典进行排序? 如果您有以下格式的字典: { 'KEY1':{'name':'foo','data':1351,'completed':100}, 'KEY2':{'name':'bar','data':1541,'completed':12}, 'KEY3':{'name':'baz','data':58413,'completed':18} } PythonCopy 并且您想按键、在每个条目中的“completed”升序排序,可以使用带有lambda函数的sorted函数来指定要用于排序数据的键。例如, my_collection = { 'KEY1':{'name':'foo','data':1351,'completed':100}, 'KEY2':{'name':'bar','data':1541,'completed':12}, 'KEY3':{'name':'baz','data':58413,'completed':18} } sorted_keys = sorted(my_collection, key=lambda x: (my_collection[x]['completed'])) print(sorted_keys) PythonCopy 这将产生以下输出: ['KEY2', 'KEY3', 'KEY1'] PythonCopy 阅读更多:Python 教程