offer rotation array
Moving the first elements of an array to the end of an array is called array rotation. Input a rotation of a non decreasing sort array and output the smallest element of the rotated array. For example, if the array {3,4,5,1,2} is a rotation of {1,2,3,4,5}, the minimum value of the array is 1.
NOTE: all elements given are greater than 0. If th ...
Posted by aximbigfan on Thu, 09 Jul 2020 18:00:14 +0200
Coexistence of Kotlin and Java, calling kotlin code in -Java
Call of kotlin data class
Call of object simple profit mode class in Kotlin
Calling file class in Kotlin
Flexible transfer of parameters by calling jvm annotation
String string null call
Call of kotlin data class
kotlin Code:
package com.tianfu.kotlin
/**
* age Member annotations cannot have get and ...
Posted by imranlink on Wed, 08 Jul 2020 18:01:49 +0200
MFC+Opencv3 Camera Read+Gray Histogram+Frame Number Comparison
1. Create a dialog-based MFC program under vs.
The layout is as follows
2. Initialize
Add the following code to the OnInitDialog() function in the C***Dlg class
CWnd *pWnd1 = GetDlgItem(IDC_PIC1); //Gets the window class that displays the camera picture (parameter is control ID)
CWnd *pWnd2 = G ...
Posted by isuckat_php on Wed, 08 Jul 2020 17:26:30 +0200
Summary 1_3: Extension methods and singletons
General Code Outline: Minimum Code, Strongest Framework, Optimal Logic
1. The appearance of an extension method greatly simplifies the amount of code
Similar to GetComponent, our custom extension method also adds some necessary logic to it as needed.
//Extension Method
//Static Class->Static Method->Parameter List First is: this ty ...
Posted by dougp23 on Wed, 08 Jul 2020 17:14:37 +0200
Overview of springMVC's ability to download Excel tables
spring provides encapsulation classes for Excel DownloadsOrg.springframework.web.Servlet.view.document.AbstractExcelView, when implemented, simply implement a class that inherits AbstractExcelView, then override the
buildExcelDocument(Map<String, Object> model,HSSFWorkbook workbook, HttpServletRequest request,HttpServletResponse respo ...
Posted by conspi on Wed, 08 Jul 2020 17:02:44 +0200
web front-end project integrates both JSP and FreeMaker_u_Multi-view Parser Configuration
*In 2017, at the request of the company, responsible for research and development of intelligent analysis platform, using OLAP technology to analyze tax data from multiple dimensions, levels and cross-business domains, discover data characteristics, summarize tax laws, and support leadership decision-making. After nearly a year, it was finally ...
Posted by brob on Wed, 08 Jul 2020 16:28:31 +0200
python dota2 data 3 download winner data
python dota2 data 3 download winner data
Goal: Download five heroes from each winner or loser for subsequent analysis.
Because get_match_history() does not include wins or losses in the return, but also uses get_for each matchMatch_Details() query, less efficient.
Use another API to query the contest, get_match_history_by_seq_num():
{
...
Posted by Tea_J on Tue, 07 Jul 2020 18:23:14 +0200
Chapter 7 Data Regulation: Cleanup, Conversion, Merge, Reshaping (4)
Chapter 7 Data Regulation: Cleanup, Conversion, Merge, Reshaping (4)
The source of ldata is not given in this chapter and is availableMacrodata.csvTurn out available data.
import pandas as pd
import numpy as np
import datetime ###Time processing later
from pandas import Series,DataFrame
###Read inMacrodata.csvfil ...
Posted by quicknik on Tue, 07 Jul 2020 17:44:07 +0200
Chapter 7 Data Regulation: Cleanup, Conversion, Merge, Reshaping (3)
Chapter 7 Data Regulation: Cleanup, Conversion, Merge, Reshaping (3)
Merge overlapping data
Numpy.where()
A vectorized if-else
import pandas as pd;import numpy as np
from pandas import Series,DataFrame
a = Series([np.nan,2.5,np.nan,3.5,4.5,np.nan],index=['f','e','d','c','b','a'])
Out[8]:
f NaN
e 2.5
d ...
Posted by Zeekar on Tue, 07 Jul 2020 17:27:05 +0200
django implements foreground and background data binding by submitting form with ajax+post
The first step is to introduce jquery files, either online or offline, to add to your own staticfiles
What's demonstrated here is adding offline
<script src={% static 'js/jquery-2.1.1.min.js' %}></script>
Note that this sentence is added before the ajax jquery script you write.
Then the HTML form is as follows:
...
Posted by TraceyK on Tue, 07 Jul 2020 16:31:40 +0200