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如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...对于中小资金的投资者来说，运用手工方法每日进行一下处理，逐步建立起自己的一套方法，相信也能达到基本的效果。
当然，不管是指标公式、选股公式、交易公式，还是交易系统，其生命都源于交易策略。交易策略是根据...
Convert line-endings for whole directory tree (Git)
...s instead (*.rb, *.py, etc). Example: sfk remcr -dir chef -file .rb -file .json -file .erb -file .md
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STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...器并不是真实的类别,它只是传递给函数模板的一种参数格式而已
STL中算法分类:
操作对象
直接改变容器的内容
将原容器的内容复制一份,修改其副本,然后传回该副本
功能:
非可变序列算法 指不直接修改其所操作的...
RESTful API methods; HEAD & OPTIONS
...s it assumed that the response format is the same as other responses? (eg; JSON, XML, etc.)
– Dan Lugg
Jul 12 '11 at 6:08
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What is the motivation for bringing Symbols to ES6?
...};
Note:
It's worth to notice, though, that stringifying the object with JSON.stringify will drop all the pairs initialised with a Symbol as a key.
Executing Object.keys won't either return such Symbol()->value pairs.
Using this initialisation, it's absolutely impossible to mistake the entries...
Rails 4 multiple image or file upload using carrierwave
... array of images:
rails generate migration AddPicturesToProducts pictures:json
Run the migration
bundle exec rake db:migrate
Add pictures to model Product
app/models/product.rb
class Product < ActiveRecord::Base
validates :name, presence: true
mount_uploaders :pictures, PictureUploader
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What does “use strict” do in JavaScript, and what is the reasoning behind it?
...ipt Strict Mode might interest you: John Resig - ECMAScript 5 Strict Mode, JSON, and More
To quote some interesting parts:
Strict Mode is a new feature in ECMAScript 5 that allows you to place a program, or a function, in a "strict" operating context. This strict context prevents certain action...
deciding among subprocess, multiprocessing, and thread in Python?
...ngle instance for co-ordinating your workers and marshaling data (pickled, JSON, BSON, or YAML) among them.
Of course as you start to build a larger scale and more sophisticated solution around Redis you are re-implementing many of the features that have already been solved using, Celery, Apache Spa...
Difference between Pragma and Cache-Control headers?
... at you Stackoverflow:
200 OK
Pragma: no-cache
Content-Type: application/json
X-Frame-Options: SAMEORIGIN
X-Request-Guid: a3433194-4a03-4206-91ea-6a40f9bfd824
Strict-Transport-Security: max-age=15552000
Content-Length: 54
Accept-Ranges: bytes
Date: Tue, 03 Apr 2018 19:03:12 GMT
Via: 1.1 varnish
Co...
Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
...doesn't have very many standards defined. You can send and receive data as JSON, XML or even plain text. It's light weighted compared to SOAP.
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