主要用到了query.$or和query.$regex这两个find参数。 其中query.$or用于实现多条件查询，其值是一个数组，相关文档 (opens new window)

示例代码：

let mongoose = require('mongoose');
let Schema = mongoose.Schema;
let SchemaClass = new Schema({
    name: {
        type: String,
        default: ""
    },
    type: {
        type: String,
        default: ""
    }
});

let regExp = '动态值';
let filterArr = [
    {name: {$regex: new RegExp(`${regExp}`, 'gi')}},
    {type: {$regex: 'class'}}
];

let dataBase = mongoose.model('cshisas', SchemaClass);
dataBase.find({ $or: filterArr }, (err, data) => {
    if (err) {
         console.log(err);
    } else {
        console.log(data);
        //  JSON.parse(JSON.stringify(data))
        //  res.json({ data, result: true, code: 200 });
    
    }
});