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1.json文件保存
将数据保存为json格式，并存储到.json文件中，需要注意键值对均用双引号，而非单引号。
样例如下所示：
{
"sampleDB": {
"shippedVsCustDemand": [{
"CUSTOMER": "customer1", "ITEM": "desk", "SUPPLIEDQTY": 25, "DEMANDQTY": 3}, {
"CUSTOMER": "customer1", "ITEM": "drawer", "SUPPLIEDQTY": 15, "DEMANDQTY": 12}, {
"CUSTOMER": "customer1", "ITEM": "table", "SUPPLIEDQTY": 52, "DEMANDQTY": 6}, {
"CUSTOMER": "customer2", "ITEM": "end table", "SUPPLIEDQTY": null, "DEMANDQTY": 5}, {
"CUSTOMER": "customer2", "ITEM": "leg", "SUPPLIEDQTY": null, "DEMANDQTY": 10}, {
"CUSTOMER": "customer2", "ITEM": "round table", "SUPPLIEDQTY": null, "DEMANDQTY": 15}, {
"CUSTOMER": "customer3", "ITEM": "desk", "SUPPLIEDQTY": null, "DEMANDQTY": 21}, {
"CUSTOMER": "customer3", "ITEM": "desk top", "SUPPLIEDQTY": null, "DEMANDQTY": 14}, {
"CUSTOMER": "customer3", "ITEM": "end table", "SUPPLIEDQTY": 1, "DEMANDQTY": 7}], "totalManufItems": [{
"ITEM": "desk", "TOTALMANUFQTY": 25}, {
"ITEM": "end table", "TOTALMANUFQTY": 155}]}}
2.组合键
在pycharm中，使用组合键ctrl+alt+L进行格式化。
效果如下所示：
{
"sampleDB": {
"shippedVsCustDemand": [{
"CUSTOMER": "customer1", "ITEM": "desk", "SUPPLIEDQTY": 25, "DEMANDQTY": 3},
{
"CUSTOMER": "customer1", "ITEM": "drawer", "SUPPLIEDQTY": 15, "DEMANDQTY": 12},
{
"CUSTOMER": "customer1", "ITEM": "table", "SUPPLIEDQTY": 52, "DEMANDQTY": 6},
{
"CUSTOMER": "customer2", "ITEM": "end table", "SUPPLIEDQTY": null,
"DEMANDQTY": 5},
{
"CUSTOMER": "customer2", "ITEM": "leg", "SUPPLIEDQTY": null, "DEMANDQTY": 10},
{
"CUSTOMER": "customer2", "ITEM": "round table", "SUPPLIEDQTY": null,
"DEMANDQTY": 15},
{
"CUSTOMER": "customer3", "ITEM": "desk", "SUPPLIEDQTY": null, "DEMANDQTY": 21},
{
"CUSTOMER": "customer3", "ITEM": "desk top", "SUPPLIEDQTY": null,
"DEMANDQTY": 14},
{
"CUSTOMER": "customer3", "ITEM": "end table", "SUPPLIEDQTY": 1, "DEMANDQTY": 7}],
"totalManufItems": [{
"ITEM": "desk", "TOTALMANUFQTY": 25}, {
"ITEM": "end table", "TOTALMANUFQTY": 155}]}}
参考：
[1] https://www.it610.com/article/1295759947937685504.htm
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