https://blog.csdn.net/m0_37674755/article/details/85530142
https://blog.csdn.net/weixin_36048246/article/details/89287200
转换方法
（1）shift: the primary function is to copy and copy a structure of the input JSON to the target JSON
（2）default: the primary effect is to set the default value
（3）remove: the primary function is to delete, and you can delete a structure of the input JSON structure
（4）sort：sort key values
shift
default
remove(BUG)
sort(BUG)
通配符
*,&
$,@,#
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