Python 格式化 JSON
格式化结果
上面的例子打印了一个 JSON 字符串，但它不容易阅读，没有缩进和换行符。
The json.dumps() 方法有参数可以使结果更容易阅读。
您还可以定义分隔符，默认值为 (", ", ": "), 这意味着使用逗号和空格分隔每个对象，使用冒号和空格分隔键和值。
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