我尝试使用以下代码获取bodyHTMLMCOIMAPFetchContentOperation*op=[imapsessionfetchMessageAttachmentOperationWithFolder:folderNameuid:uidpartID:partIdencoding:MCOEncoding8Bit我得到了带有一些不需要的额外代码的bodyHTML。我为其中一封邮件获得的Html是<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Strict//EN""http://www.w3.org=/TR/xhtml1/DTD/xhtml1-s

假设以下3个模型:varCarSchema=newSchema({name:{type:String},partIds:[{type:Schema.Types.ObjectId,ref:'Part'}],});varPartSchema=newSchema({name:{type:String},otherIds:[{type:Schema.Types.ObjectId,ref:'Other'}],});varOtherSchema=newSchema({name:{type:String}});当我查询Cars时，我可以填充零件:Car.find().populate('partId

假设以下3个模型:varCarSchema=newSchema({name:{type:String},partIds:[{type:Schema.Types.ObjectId,ref:'Part'}],});varPartSchema=newSchema({name:{type:String},otherIds:[{type:Schema.Types.ObjectId,ref:'Other'}],});varOtherSchema=newSchema({name:{type:String}});当我查询Cars时，我可以填充零件:Car.find().populate('partId