doc

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm a beginner at JSON document, this is my code so please help me to solve this error. { "_id" : "_design/utilisateur" , "_rev" : "1-967a00dff5e02add41819138abb3284d" , "views" : { "tous" : { "map" : "function(doc){if (doc.role=='utilisateur') {emit (doc._id, [['t0',doc.distancet0],['t1',doc.distancet1],['t2',doc.distancet2],['t3',doc.distancet3], ['t4',doc.distancet4]])}}" }, "3500" : { "map" : "function(doc) {if (doc.role=='utilisateur' && doc.distancet0<3500) {emit(doc._id,doc.distancet0)}}" }, "distancetot" : { "map" :

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using pdfkit to generate pdf file and i want to send this pdf file to browser. My following code is working fine and i am getting one pdf with text. Actually following code is sample to generate pdf using pdfkit in nodejs but now i want to create html table. Latest Code var PDFDocument = require('pdfkit'); var fs=require('fs'); doc = new PDFDocument(); doc.pipe( fs.createWriteStream('out.pdf') ); doc.moveTo(300, 75) .lineTo(373, 301) .lineTo(181, 161) .lineTo(419, 161) .lineTo(227, 301) .fill('red', 'even-odd'); var loremIpsum = 'Lorem

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: With the help of this .doc to pdf using python Link I am trying for excel (.xlsx and xls formats) Following is modified Code for Excel: import os from win32com import client folder = "C:\\Oprance\\Excel\\XlsxWriter-0.5.1" file_type = 'xlsx' out_folder = folder + "\\PDF_excel" os.chdir(folder) if not os.path.exists(out_folder): print 'Creating output folder...' os.makedirs(out_folder) print out_folder, 'created.' else: print out_folder, 'already exists.\n' for files in os.listdir("."): if files.endswith(".xlsx"): print files print '\n\n' word

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: i know you will say that this question is asked before many times but i havent solved it yet... models.py class Doc(UploadModel): doc_no = models.CharField(max_length=100, verbose_name = "No", blank=True) date_added = models.DateTimeField(verbose_name="Date", default=datetime.now, editable=False) class DocImage(models.Model): property = models.ForeignKey(Doc, related_name='images') image = FileBrowseField("Docs", max_length=200, directory="doc_img/%Y/%m/%d/%H/%M/%S/", extensions=[".jpg",".tif"], blank=True, null=True) views.py def doc_detail

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This is my code: import { Component, OnInit } from '@angular/core'; import { AngularFirestore , AngularFirestoreCollection , AngularFirestoreDocument } from 'angularfire2/firestore'; import { Observable } from 'rxjs/Observable'; interface Country { id?: string; name?: string; code?: string; flag?: string; continent?: string; } @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent implements OnInit { title = 'Firestore - Documents'; private countryRef:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'd like the contents of doc/README_FOR_APP appear in doc/app/index.html , when I do rake doc:app . Currently, the content is: This is the API documentation for Rails Application Documentation. To see README_FOR_APP , I have to click on README_FOR_APP in the pages list on the left. I've looked at How to Rename or Move Rails's README_FOR_APP but the OP asserts that he's already seeing the behaviour I want. I'm using rails 3.1.3. 回答1: Firstly, create a new rake file (e.g lib/tasks/documentation.rake ) in your project. Then redefine the rake

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I download a URL with IdHTTP.Get , and I need to search the HTML tags and extract some data. How I can convert the string that IdHTTP.Get returns into an IHTMLDocument2 ? 回答1: Try this one: uses ... Variants, MSHTML, ActiveX; var Cache: string; V: OleVariant; Doc: IHTMLDocument2; begin ... Cache := IdHTTP.Get(url); Doc := coHTMLDocument.Create as IHTMLDocument2; // create IHTMLDocument2 instance V := VarArrayCreate([0,0], varVariant); V[0] := Cache; Doc.Write(PSafeArray(TVarData(v).VArray)); // write data from IdHTTP // Work with Doc end;

方法一： var cursor = db.Clinical_laboratory_center_data.find({"article_detial.Registration.Date_of_Last_Refreshed_on": {"$exists": true, "$type": 2 }}); while (cursor.hasNext()) { var doc = cursor.next(); db.collection.update( {"_id" : doc._id}, {"$set" : {"article_detial.Registration.Date_of_Last_Refreshed_on" : new ISODate(doc.article_detial.Registration.Date_of_Last_Refreshed_on)}} ) }; 只需要把collection的名字和字段换了即可。doc就是代表你当前的记录。 方法二： db.ClockTime.find().forEach(function(doc) { doc.ClockInTime=new Date(doc.ClockInTime); db.ClockTime.save(doc); }) 原理大致同上一个相同，只不过这个效率稍微低一些。 这里稍微说下，在运行之前，先把超时的时间设置的长一点

一、聚合操作内部原理 1.正排索引（doc value）的聚合内部原理 ①index-time生成 PUT/POST的时候，就会生成doc value数据，也就是正排索引 ②核心原理与倒排索引类似 正排索引，也会写入磁盘文件中，然后os cache先进行缓存，以提升访问doc value正排索引的性能 如果os cache内存大小不足够放得下整个正排索引，doc value，就会将doc value的数据写入磁盘文件中 ③性能问题：给jvm更少的内存，给os cache更大的内存 ④如果的确不需要doc value，比如聚合等操作，那么可以禁用，减少磁盘空间占用 PUT my_index { "my_type": { "my_field": { } } } ⑤如果要对分词的field执行聚合操作，必须将fielddata设置为true { "test_field": { } } 二、易并行聚合算法：比如max 1.近似聚合算法 ：采用在每个node上进行近估计的方式，得到最终的结论 如果采取近似估计的算法：延时在100ms左右，0.5%错误 如果采取100%精准的算法：延时一般在5s~几十s，甚至几十分钟，几小时，0%错误 2.三角选择原则 ：精准+实时+大数据 --> 选择2个 a.精准+实时: 没有大数据，数据量很小，那么一般就是单击跑，随便你则么玩儿就可以 b.精准+大数据