1. Comparison of constants, read-only fields, static fields and static read-only fields
1 public class ModelClass
2 {
3 //The constant must be assigned an initial value when it is define
Month: October 2021
C # cache implementation
Implementation of Cache We are not doing a third-party cache implementation such as Redis, but according to the actual situation, we will save some environment variables based on C# to facilitate t
Spoon (Kettle) Basic Configuration (Connect MySQL and Oracle)
1. Download the spoon package and driver
The spoon package I use, including spoon7.1, Mysql driver and Oracle driver
link: https:// pan.baidu.com/s/16Q-iUNB7qGU0xlKbGTw-vg Extraction code: q9h5
If you have installed an Oracle database or oracle client locally, you can use its own Oracle driver,
C # Remove illegal characters in the file name to replace other characters in the same style
///
/// Replace illegal characters in the file name with other characters of the same type
///
///
///
public string ReplaceFileName(string name)
{
name = name.Replace(“/”, “／”);
C # program Send POST Request Data + Lost Solution
The C# program always fails the verification when sending the RSA-encrypted password to the backend. I use wireshark to capture packets and find that the + signs in the password sent by POST have b
Remember to deal with the experience of the mysql database
One day, the user table in the production environment suddenly locked the table for no reason. I thought it was just an occasional bug. So the first solution that came to my mind was simple and rud
C# List
List< /span> List T is the element type in the list, compile The browser will check if the element type you add to the list is correct. If it is not correct, an error will be reported. In other wor
Jo C #
1 using System;
2 public class MyDate{
3 private int month,day,year;
4 public MyDate(int _month=1,int _day= 1,int _year=1900 ){
5 bool ok=true;
6 if(_month>12 || _month<1 || _year<0 || _
[C #] Classroom knowledge point # 1
Standard numeric format string https://docs.microsoft.com/zh-cn/dotnet/standard/base-types/standard-numeric-format-strings
https://docs.microsoft.com/zh-cn/dotnet/standard/base-types/composit
Use node to do the background write interface for Express + MySQL + Node
1. Introduce the corresponding module
const express = require(‘express’)
// Create server express module, express framework coexists with native API , So you can use any native method attrib