Python uses Pymongo to access MongoDB's basic operations, as well as CSV file export
1. Environment.
python:3.6.1Python Ide:pycharmSystem: Win7 2. Simple example
Import Pymongo
# MongoDB service address and port number
Mongo_url = "127.0.0.1:2701
1. Store the data txt file. 1.1 Examples:# 1 存储 txt 文件data = ‘‘‘我是一个txt文件‘‘‘# 存储的文件名:file=‘test.txt‘# 文件打开方式:mode=‘a‘# 编码格式:encoding=‘UTF-8‘with open(file=‘test.txt‘,mode=‘a‘,encoding=‘UTF-8‘) as f : f.write(data) # 保存内容 f.close()
The front end can use JavaScript to download the file containing the page data in the client, here is the CSV format file as an example, the code is as follows:function downloadData(data, filename, type) { var file = new Blob(["\ufeff" + data], {
Infi-chu:http://www.cnblogs.com/Infi-chu/TXT text storeTXT text storage, convenient, simple, almost suitable for any platform. But it is not conducive to retrieval.1. For example:Use requests to get the Web page source code, and then use the Pyquery
Datalib is a JavaScript data utility library.
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Tudou Sync
This article introduces how to use javascript to extract the coordinates of the administrative region boundary longitude and latitude from AMAP and Baidu. This article is highly practical and easy to understand. For more information, see.
Using
In this article, I'll graphically use the Spreadjs in the Wijmo (JavaScript Library) to step through the spreadsheet product spreadsheet on a Web page (for example, to build Office 365 Excel products, Google's online spreadsheet).Blog
Pure JavaScript chart component dhtmlxChart
DhtmlxChart is also a JavaScript-based chart application component. Similar to the previously shared xCharts, dhtmlxChart also provides a rich array of chart types. It should be said that compared with
Recently there was a request for one of my projects to parse Excel files (with xls/xlsx extensions) in the browser (using JavaScript of course). So I looked online and found these 2 useful libraries:
Js-xls
Js-xlsx
Let's see how
Dhtmlxchart is also a JavaScript-based charting application component, similar to the previously shared Xcharts, Dhtmlxchart also offers a very rich chart type, which should say it offers more chart types than Xcharts, including pie charts, radar
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