小编Ama*_*mar的帖子

是否可以使用GmapC#中的库在Google Map上制作自定义形状(使用鼠标),然后将其保存到数据库中,并在客户端请求中再次在Google Map上绘制存储的形状？是否有可能在任何其他库中执行此类操作或Gmap(我不期望代码.只是概述了这样做.)？

我想打印从文件中读取的python中字符串的最后一个字符.我打电话给str[-1]但不工作.

t.txt包含

Do not laugh please!        9

Are you kidding me?     4

我的代码是

with open('t.txt', 'r') as f:
    for line in f:
        print(line)
        print(line[-1])
        # break

但它不打印任何东西.

我想在底部页面完全向上时向下滚动视图（向上拖动以完成屏幕）。向上滚动时效果很好，但向下滚动时不起作用。而是，整个底页都下降了。有什么办法吗？

主要活动

import android.os.Bundle;
import android.support.design.widget.BottomSheetBehavior;
import android.support.design.widget.BottomSheetDialog;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.TypedValue;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button fab = (Button) findViewById(R.id.button);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                BottomSheetDialog bottomSheetDialog  = new BottomSheetDialog(MainActivity.this);
                View parentView = getLayoutInflater().inflate(R.layout.sheetlayout,null);
                bottomSheetDialog.setContentView(parentView);
                BottomSheetBehavior bottomSheetBehavior = BottomSheetBehavior.from((View) parentView.getParent());
                bottomSheetBehavior.setPeekHeight(
                        (int) TypedValue.applyDimension(
                                TypedValue.COMPLEX_UNIT_DIP,100,getResources().getDisplayMetrics()
                        )
                );
                bottomSheetDialog.show();

            }
        });
    }
} …

我想在任何嵌套的json中获取具有特定单词的所有文档.集合中的文档看起来像这样;

Man:{
        First name: 'F-Name'
        Last name: 'L-Name'
        hobbies:{
            sports:'cricket'
            watching: 'films'
        }
        Likeness:{
            name: 'F-name'
            fruit: 'chikoo'
        }
    }

收集中有多个这样的文件.例如,我想找到所有有文字的文件F-name.见上面的json.F-name在2个嵌套的jsons中.但它可以只有一个或多个.什么是快速和智能的方式来查找所有文档而不是给出任何字段或嵌套的Json名称(在上面的例子中,名字,相似 - >名称).有什么办法吗？

$mng = new MongoDB\Driver\Manager("mongodb://localhost:27017");
$filter = [ ?? ];
$query = new MongoDB\Driver\Query($filter);     
$res = $mng->executeQuery("Database.myName", $query);

编辑1 根据@Shail Paras的建议,我运行以下代码;

<?php
    $mng = new MongoDB\Driver\Manager("mongodb://localhost:27017");
    $query = new \MongoDB\Driver\Query(['createIndex' => ['*' => 'text']]);
    $res = $mng->executeQuery("BBC_Database.BBC", $query);
    $filter = ['$text' => ['$search' => "\"F-name\""]];
    $query1 = new MongoDB\Driver\Query($filter);     
    $cursor = $mng->executeQuery("Database.Col", $query1);
    $filteredData …

我想查找文档的所有字段，pymongo用于从中检索数据。下面的代码给出了所有文档及其所有字段。但是我们可以找到文档的所有字段或键吗？

f = db['Collection'].find()
for i in f:
    print(i['Date'])

我可以ObjectId从

print(db['Collection'].distinct("_id"))

现在我们拥有ids所有文件。我们能找到字段吗？

我正在MongoDB从事python [pymongo]. 我想在文档中插入多个字段的数组。例如：在下面的集合结构中，我想Places Visited在所有文档中插入数组。我不知道它在世界上叫什么Mongo。所以我可以插入它。如何在文档中插入数组？有人可以帮忙吗？

collectionName
    {
            "_id" : "4564345343",
            "name": "Bunty",
            "Basic Intro": "A.B.C.D.",
            "Places Visited": [
                    "1" : "Palace of Dob",
                    "2" : "Palace of Victoria",
                    "3" : "Sahara Desert"
            ]
    }
    {
            "_id"  : "45657865745",
            "name": "Humty",
            "Basic Intro": "B.C.D.",
            "Places Visited": [
                    "1" : "Palace of Pakistan",
                    "2" : "Palace of U.S.A."
                    "3" : "White House"
            ]
    }

我想获得python中facebook帖子的总计数.下面的代码给出了一些喜欢帖子的人的json对象.但不是所有的.我需要总数.可能吗？

import requests
import facebook
token=''
graph = facebook.GraphAPI(token)
lik = graph.get_connections(id='10153608167431961', connection_name='likes')
print(lik)

结果是:

{'data':[{'id':'1583767538554134','name':'ØpPö'},{'id':'120568968399628','name':'William Anthony Christo'},{'id': '699615593474341','名称':'Anum Rabani'},{'id':'290360191169562','name':'রফিকুলকুলামমিক'},{'id':'119195851825867','name':'Anant Gharte '},{'id':'1584033738513309','name':'Miguel Gates'},{'id':'170725429957788','name':'Rahmatullah Kazimi'},{'id':'165244040549022', 'name':'Jose Marques'},{'id':'553277864818751','name':'Shubham Kumar'},{'id':'177910112626556','name':'Rajesh Singh'},{' id':'10206027408500948','name':'CüneytEkin'},{'id':'134409193615843','name':'Moazzem Hossain'},{'id':'1452911201684073','name':' Sohail Noori'},{'id':'706685776074740','name':'Man Muet'},{'id':'1655289584790642','name':'Emeghara Lucky Kelechi'},{'id':' 10205877189481867','name':'Danielle Oliver Solomon'},{'id':'511315079054021','name':'Ajay Kumar'},{'id':'659773750764822','name':'Tiago Ballon i'},{'id':'385284718315460','name':'Ivica Herman'},{'id':'394871897335035','name':'Zubayer Hassan'},{'id':'532960883548514' ,'name':'Mohan Rathod'},{'id':'373452456160618','name':'Jeevajohthy Pramulu Naidu'},{'id':'803092719700936','name':'Patricia Ann Harris'} ,{'id':'960692997327631','name':'Osama Ozy'},{'id':'739963022766566','name':'Abdalrhman Selim'}],'paging':{'next':' https://graph.facebook.com/v2.1/10153608167431961/likes?access_token=EAACEdEose0cBAJZC5cI5OJZC6l6XZATLGsBjutHdQyvqEs4yQk7HejvKNAHqLwdNgANtMdvnGAekUo7Mx10u8K2MydmOCNNzEDmPAL3kTQITKTYIwwD1ZCNTjpLtSnZATTiW0xWrnaFbjJomXKQUnkMpF3ZCBqh6WYMixkh5tuhQZDZD&limit=25&after=NzM5OTYzMDIyNzY2NTY2 ", '游标':{ '前': '后MTU4Mzc2NzUzODU1NDEzNAZDZD', '': 'NzM5OTYzMDIyNzY2NTY2'}}}