1、查询
Query文本框里输入{"ComNature" : 8}
查询不为空的数据?null、‘’ 1 '1'?是有区别的哦
$ne?不等于? $eq?等于
{"ComNature" : {$ne:null}}
{"ComNature" : {$ne:''}}
{"ComNature" : {$ne:1}}?
{"ComNature" : {$eq:1}}
2、排序
sort文本框里输入{"AddTime":1}
{"AddTime":1}? 正序
{"AddTime":-1}?倒叙