python通过对字典的排序,对json字段进行排序的实例
如下所示:
dic = dict() dic['a'] = 1 dic['b'] = 2 dic['c'] = 3 print(dic.items()) import json jsons = json.dumps(dic) print(jsons)
结果:
dic is: dict_items([('c', 3), ('b', 2), ('a', 1)])
jsons: {"c": 3, "b": 2, "a": 1}
通过使用collecions,进行排序。collections是一个python的内建模块。
import collections dic = collections.OrderedDict() # dic = dict() dic['a'] = 1 dic['b'] = 2 dic['c'] = 3 print("dic is:",dic.items()) import json jsons = json.dumps(dic) print("jsons:",jsons)
结果:
dic is: odict_items([('a', 1), ('b', 2), ('c', 3)])
jsons: {"a": 1, "b": 2, "c": 3}
补充拓展:对JSON集合 某个键进行升序/降序排列
我就废话不多说了,直接上代码吧
$(document).ready(function () { //对json进行降序排序函数 var colId="age" var desc = function(x,y) { return (x[colId] < y[colId]) ? 1 : -1 } //对json进行升序排序函数 var asc = function(x,y) { return (x[colId] > y[colId]) ? 1 : -1 } var arr2 = [ {name:"kitty", age:12}, {name:"sonny", age:9}, {name:"jake", age:13}, {name:"fun", age:24} ]; document.writeln("按age进行升序排序:<br>"); arr2.sort(asc); //升序排序 document.writeln(JSON.stringify(arr2)); document.writeln("<br>按age进行降序排序:<br>"); arr2.sort(desc); //降序排序 document.writeln(JSON.stringify(arr2)); });
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