程序猿的量化交易之路(14)--Cointrader数据表(2)
Cointrader表结构
转载须注明出处:http://blog.csdn.net/minimicall?viewmode=contents,http://cloudtrader.top
设置(setup)
Install Java
Install Maven
Install MySql
Create a database using
mysql -u root -e `create database cointrader;`
This is mysql root not system root
git clone https://github.com/timolson/cointrader.git
cd cointrader
Build with Maven
mvn
Optional: Create a file cointrader.properties in the current directory. You may configure additional settings here, like a database username and password. See cointrader-default.properties.
Initialize the database with:
./cointrader.sh reset-database
You're done! Now you might want to:
Start a process to save market data in the db:
./cointrader.sh save-data &
Run the Console
./cointrader.sh console
登入数据库:
$ mysql -u root -p
查看database:
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| cointrader |
| db_test |
| mysql |
| openfire |
| performance_schema |
| xoops |
+--------------------+
7 rows in set (0.00 sec)
切入cointrader:
mysql> use cointrader;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
查看表格:
mysql> show tables;
+--------------------------+
| Tables_in_cointrader |
+--------------------------+
| adjustment |
| adjustment_deltas |
| authorization |
| book |
| currency |
| exchange |
| fill |
| fill_children |
| general_order |
| listing |
| market |
| market_data_gap_error |
| offer |
| order_children |
| order_update |
| owner |
| owner_stakes |
| portfolio |
| portfolio_manager |
| portfolio_stakes |
| position |
| position_fills |
| position_update |
| prompt |
| specific_order |
| stake |
| strategy_instance |
| strategy_instance_config |
| tick |
| trade |
| transaction |
+--------------------------+
31 rows in set (0.01 sec)
查看每个表的表结构
mysql> desc adjustment;
+---------------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time_applied | tinyblob | YES | | NULL | |
| authorization | binary(16) | NO | UNI | NULL | |
+---------------+------------+------+-----+---------+-------+
mysql> desc adjustment_deltas;
+------------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+------------+------+-----+---------+-------+
| adjustment | binary(16) | NO | MUL | NULL | |
| deltas | binary(16) | NO | PRI | NULL | |
+------------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc authorization ;
+---------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| notes | varchar(255) | YES | | NULL | |
+---------+--------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> desc authorization ;
+---------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| notes | varchar(255) | YES | | NULL | |
+---------+--------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> desc book ;
+----------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | MUL | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | NO | MUL | NULL | |
| market | binary(16) | NO | MUL | NULL | |
| ask_deletions_blob | longblob | YES | | NULL | |
| ask_insertions_blob | longblob | YES | | NULL | |
| ask_price_as_double | double | YES | | NULL | |
| ask_volume_as_double | double | YES | | NULL | |
| bid_deletions_blob | longblob | YES | | NULL | |
| bid_insertions_blob | longblob | YES | | NULL | |
| bid_price_as_double | double | YES | | NULL | |
| bid_volume_as_double | double | YES | | NULL | |
| parent | binary(16) | YES | MUL | NULL | |
+----------------------+--------------+------+-----+---------+-------+
15 rows in set (0.00 sec)
mysql> desc currency ;
+---------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| basis | double | NO | | NULL | |
| symbol | varchar(255) | NO | | NULL | |
| fiat | bit(1) | NO | | NULL | |
+---------+--------------+------+-----+---------+-------+
5 rows in set (0.00 sec)
mysql> desc exchange ;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| fee_method | int(11) | YES | | NULL | |
| fee_rate | double | NO | | NULL | |
| margin | int(11) | NO | | NULL | |
| margin_fee_method | int(11) | YES | | NULL | |
| margin_fee_rate | double | NO | | NULL | |
| symbol | varchar(255) | NO | | NULL | |
+-------------------+--------------+------+-----+---------+-------+
8 rows in set (0.00 sec)
mysql> desc fill ;
+--------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | NO | | NULL | |
| open_volume_count | bigint(20) | NO | | NULL | |
| price_count | bigint(20) | NO | | NULL | |
| stop_price_count | bigint(20) | NO | | NULL | |
| target_price_count | bigint(20) | NO | | NULL | |
| volume_count | bigint(20) | NO | | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| order | binary(16) | YES | MUL | NULL | |
| portfolio | binary(16) | NO | MUL | NULL | |
+--------------------+--------------+------+-----+---------+-------+
13 rows in set (0.01 sec)
mysql> desc fill_children ;
+----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+------------+------+-----+---------+-------+
| fill | binary(16) | NO | MUL | NULL | |
| children | binary(16) | NO | PRI | NULL | |
+----------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc general_order ;
+-----------------------------+---------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------------------------+---------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| comment | varchar(255) | YES | | NULL | |
| emulation | bit(1) | NO | | NULL | |
| entry_time | bigint(20) | YES | | NULL | |
| expiration | tinyblob | YES | | NULL | |
| fill_type | int(11) | YES | MUL | NULL | |
| margin_type | int(11) | YES | | NULL | |
| panic_force | bit(1) | NO | | NULL | |
| position_effect | int(11) | YES | | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| parent_order | binary(16) | YES | | NULL | |
| portfolio | binary(16) | NO | MUL | NULL | |
| limit_price_decimal | decimal(19,2) | YES | | NULL | |
| stop_amount_decimal | decimal(19,2) | YES | | NULL | |
| stop_price_decimal | decimal(19,2) | YES | | NULL | |
| target_amount_decimal | decimal(19,2) | YES | | NULL | |
| target_price_decimal | decimal(19,2) | YES | | NULL | |
| trailing_stop_price_decimal | decimal(19,2) | YES | | NULL | |
| volume_decimal | decimal(19,2) | YES | | NULL | |
| listing | binary(16) | NO | MUL | NULL | |
+-----------------------------+---------------+------+-----+---------+-------+
22 rows in set (0.00 sec)
mysql> desc listing ;
+---------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| base | binary(16) | NO | MUL | NULL | |
| prompt | binary(16) | YES | MUL | NULL | |
| quote | binary(16) | NO | MUL | NULL | |
+---------+------------+------+-----+---------+-------+
5 rows in set (0.00 sec)
mysql> desc market ;
+--------------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| active | bit(1) | NO | MUL | NULL | |
| price_basis | double | NO | | NULL | |
| volume_basis | double | NO | | NULL | |
| exchange | binary(16) | NO | MUL | NULL | |
| listing | binary(16) | NO | MUL | NULL | |
+--------------+------------+------+-----+---------+-------+
7 rows in set (0.00 sec)
mysql> desc market_data_gap_error;
+--------------------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| exception | tinyblob | YES | | NULL | |
| gap_interval_start | datetime | YES | | NULL | |
| gap_interval_end | datetime | YES | | NULL | |
| market | binary(16) | YES | MUL | NULL | |
+--------------------+------------+------+-----+---------+-------+
7 rows in set (0.00 sec)
mysql> desc offer ;
+---------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | NO | | NULL | |
| market | binary(16) | NO | MUL | NULL | |
| price_count | bigint(20) | YES | | NULL | |
| volume_count | bigint(20) | YES | | NULL | |
+---------------+--------------+------+-----+---------+-------+
8 rows in set (0.00 sec)
mysql> desc order_children ;
+----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+------------+------+-----+---------+-------+
| order | binary(16) | NO | | NULL | |
| children | binary(16) | NO | PRI | NULL | |
+----------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc order_update ;
+------------+------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+------------+------------+------+-----+---------+----------------+
| sequence | int(11) | NO | PRI | NULL | auto_increment |
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| last_state | int(11) | YES | | NULL | |
| state | int(11) | YES | MUL | NULL | |
| order | binary(16) | YES | | NULL | |
+------------+------------+------+-----+---------+----------------+
7 rows in set (0.00 sec)
mysql> desc owner ;
+-----------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| portfolio | binary(16) | YES | MUL | NULL | |
| name | varchar(255) | NO | | NULL | |
+-----------+--------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
mysql> desc owner_stakes ;
+--------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------+------------+------+-----+---------+-------+
| owner | binary(16) | NO | MUL | NULL | |
| stakes | binary(16) | NO | PRI | NULL | |
+--------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc portfolio ;
+------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| name | varchar(255) | YES | | NULL | |
| base_asset | binary(16) | YES | | NULL | |
+------------+--------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
mysql> desc portfolio_manager ;
+-----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| portfolio | binary(16) | YES | MUL | NULL | |
+-----------+------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> desc portfolio_stakes ;
+-----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------+------+-----+---------+-------+
| portfolio | binary(16) | NO | MUL | NULL | |
| stakes | binary(16) | NO | PRI | NULL | |
+-----------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc position ;
+-----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| asset | binary(16) | YES | | NULL | |
| exchange | binary(16) | YES | MUL | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| portfolio | binary(16) | YES | MUL | NULL | |
+-----------+------------+------+-----+---------+-------+
6 rows in set (0.00 sec)
mysql> desc position_fills ;
+----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+------------+------+-----+---------+-------+
| position | binary(16) | NO | MUL | NULL | |
| fills | binary(16) | NO | PRI | NULL | |
+----------+------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
mysql> desc position_update;
+-----------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| last_type | int(11) | YES | | NULL | |
| type | int(11) | YES | | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| position | binary(16) | YES | MUL | NULL | |
+-----------+------------+------+-----+---------+-------+
7 rows in set (0.00 sec)
mysql> desc prompt ;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| contract_size | double | NO | | NULL | |
| fee_method | int(11) | YES | | NULL | |
| fee_rate | double | NO | | NULL | |
| margin | int(11) | NO | | NULL | |
| margin_fee_method | int(11) | YES | | NULL | |
| margin_method | int(11) | YES | | NULL | |
| price_basis | double | NO | | NULL | |
| symbol | varchar(255) | NO | | NULL | |
| tick_size | double | NO | | NULL | |
| tick_value | double | NO | | NULL | |
| volume_basis | double | NO | | NULL | |
| traded_currency | binary(16) | YES | | NULL | |
+-------------------+--------------+------+-----+---------+-------+
14 rows in set (0.01 sec)
mysql> desc specific_order ;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| comment | varchar(255) | YES | | NULL | |
| emulation | bit(1) | NO | | NULL | |
| entry_time | bigint(20) | YES | | NULL | |
| expiration | tinyblob | YES | | NULL | |
| fill_type | int(11) | YES | MUL | NULL | |
| margin_type | int(11) | YES | | NULL | |
| panic_force | bit(1) | NO | | NULL | |
| position_effect | int(11) | YES | | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| parent_order | binary(16) | YES | | NULL | |
| portfolio | binary(16) | NO | MUL | NULL | |
| limit_price_count | bigint(20) | NO | | NULL | |
| placement_count | int(11) | NO | | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | YES | | NULL | |
| volume_count | bigint(20) | NO | | NULL | |
+-------------------+--------------+------+-----+---------+-------+
19 rows in set (0.01 sec)
mysql> desc stake ;
+-----------+----------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+----------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| stake | decimal(30,15) | YES | | NULL | |
| owner | binary(16) | YES | MUL | NULL | |
| portfolio | binary(16) | NO | MUL | NULL | |
+-----------+----------------+------+-----+---------+-------+
5 rows in set (0.00 sec)
mysql> desc strategy_instance ;
+-------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| portfolio | binary(16) | YES | MUL | NULL | |
| module_name | varchar(255) | YES | | NULL | |
+-------------+--------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
mysql> desc strategy_instance_config;
+-------------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+--------------+------+-----+---------+-------+
| strategy_instance | binary(16) | NO | PRI | NULL | |
| config | varchar(255) | YES | | NULL | |
| config_key | varchar(255) | NO | PRI | | |
+-------------------+--------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> desc tick ;
+---------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | NO | | NULL | |
| market | binary(16) | NO | MUL | NULL | |
| price_count | bigint(20) | YES | | NULL | |
| volume_count | bigint(20) | YES | | NULL | |
| start_instant | tinyblob | YES | | NULL | |
| last_book | binary(16) | YES | MUL | NULL | |
+---------------+--------------+------+-----+---------+-------+
10 rows in set (0.00 sec)
mysql> desc trade ;
+---------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+--------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | MUL | NULL | |
| remote_key | varchar(255) | YES | | NULL | |
| time_received | bigint(20) | NO | MUL | NULL | |
| market | binary(16) | NO | MUL | NULL | |
| price_count | bigint(20) | YES | | NULL | |
| volume_count | bigint(20) | YES | | NULL | |
+---------------+--------------+------+-----+---------+-------+
8 rows in set (0.00 sec)
mysql> desc transaction ;
+---------------------+------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------------+------------+------+-----+---------+-------+
| id | binary(16) | NO | PRI | NULL | |
| version | bigint(20) | YES | | NULL | |
| time | bigint(20) | NO | | NULL | |
| amount_count | bigint(20) | YES | | NULL | |
| commission_count | bigint(20) | YES | | NULL | |
| position_effect | int(11) | YES | | NULL | |
| price_count | bigint(20) | YES | | NULL | |
| type | int(11) | YES | MUL | NULL | |
| asset | binary(16) | YES | | NULL | |
| commission_currency | binary(16) | YES | | NULL | |
| currency | binary(16) | NO | | NULL | |
| exchange | binary(16) | YES | MUL | NULL | |
| fill | binary(16) | YES | MUL | NULL | |
| market | binary(16) | YES | MUL | NULL | |
| order | binary(16) | YES | | NULL | |
| portfolio | binary(16) | NO | MUL | NULL | |
+---------------------+------------+------+-----+---------+-------+
16 rows in set (0.00 sec)
程序猿的量化交易之路(14)--Cointrader数据表(2)的更多相关文章
- 程序猿的量化交易之路(29)--Cointrader之Tick实体(16)
转载需注明出处:http://blog.csdn.net/minimicall,http://cloudtrade.top Tick:什么是Tick,在交易平台中很常见,事实上就 单笔交易时某仅仅证券 ...
- 程序猿的量化交易之路(24)--Cointrader之RemoteEvent远程事件实体(11)
转载需注明出处:http://blog.csdn.net/minimicall,http://cloudtrader.top/ 在量化交易系统中.有些事件是远端传来的,比方股票的价格数据等.所以,在这 ...
- 程序猿的量化交易之路(27)--Cointrader之PriceData价格数据(14)
转载须注明出处:http://blog.csdn.net/minimicall?viewmode=contents,http://cloudtrade.top/ PriceData:价格数据.价格数据 ...
- 程序猿的量化交易之路(13)--Cointrader类图(1)
转载须注明出处:http://blog.csdn.net/minimicall? viewmode=contents, htpp://cloudtrader.top 今天開始正式切入到Cointrad ...
- 程序猿的量化交易之路(20)--Cointrader之Assert实体(8)
转载需说明出处:http://blog.csdn.net/minimicall, http://cloudtrade.top 不论什么可交易的都能够称之为Assert,资产.其类代码例如以下: pac ...
- 程序猿的量化交易之路(30)--Cointrader之ConfigUtil(17)
转载须注明出处:viewmode=contents">http://blog.csdn.net/minimicall?viewmode=contents.http://cloudtra ...
- 程序猿的量化交易之路(26)--Cointrader之Listing挂牌实体(13)
转载须注明出处:http://blog.csdn.net/minimicall? viewmode=contents,http://cloudtrade.top Listing:挂牌. 比方某仅仅股票 ...
- 程序猿的量化交易之路(32)--Cointrade之Portfolio组合(19)
转载须注明出处:http://blog.csdn.net/minimicall?viewmode=contents,http://cloudtrade.top/ Portfolio:组合,代表的是多个 ...
- 程序猿的量化交易之路(18)--Cointrader之Event实体(6)
转载需注明: 事件,是Esper的重要概念. 这里我们定义个事件类.它是Temporal实体的派生类. 不过对Temporal简单的包装.其代码例如以下: package org.cryptocoin ...
随机推荐
- 一个Web报表项目的性能分析和优化实践(二):MySQL数据库连接不够用(TooManyConnections)问题的一次分析和解决案例
最近,项目中遇到了数据库连接不够的问题. 异常信息com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data ...
- BZOJ——T 1612: [Usaco2008 Jan]Cow Contest奶牛的比赛
http://www.lydsy.com/JudgeOnline/problem.php?id=1612 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 1 ...
- ArcGIS api for javascript——放大时切换图层
描述 本例展示了如何在地图里指出显示的缓存或切片的细节等级(LODs).当打开示例地图,可以看到一些来自ArcGIS Online ESRI_Imagery_World_2D图层的影像.这个应用程序配 ...
- 浅谈Python Web的五大框架
说到Web Framework,Ruby的世界Rails一统江湖,而Python则是一个百花齐放的世界.各种micro-framework.framework不可胜数. 尽管还有一大脚本语言PHP也有 ...
- hdu5336XYZ and Drops
题意:给出r*c的网格,有的网格为空.有的有水.再给出一个爆炸点,从这个点向四周爆出四个水滴,若碰到水则融为一体,若碰到其它水滴直接跑过去互不影响.每秒可跑一格,若水中水滴数量超过4则爆开.问T秒后网 ...
- Bundle捆绑压缩技术
Bundle捆绑压缩技术由命名空间System.Web.Optimization中的类提供.顾名思义,这些类是用来优化Web页面性能的,它们通过压缩文件大小,捆绑文件(把多个文件合成一个下载文件)来实 ...
- 织梦DedeCMS会员登录或退出后如何直接跳转到首页
织梦dedecms默认情况下的会员登录后会直接跳转到会员中心,退出也是一样,但是如果我们想让会员登录后直接跳转到首页,那该如何实现呢? 经过我们的研究,已经找到解决办法,下面是详细的修改步骤: 首先在 ...
- Vuejs2.0构建一个彩票查询WebAPP(3)
整个工程的目录及截图如下,源码下载 使用心得: 1.了解Vue的生命周期很有必要,详情参见博文Vue2.0 探索之路——生命周期和钩子函数的一些理解 2.Vuex全局状态管理真是美味不可言 st ...
- react-native flatlist setState修改数据视图不刷新解决方案
给flatlist添加属性:handleMethod = {({viewableItems}) => this.handleViewableItemsChanged(viewableItems) ...
- JS关键字 import
今天开发时使用import作为方法名,报错 后查明报错原因:import是js中的关键字,在取方法名时不能取import