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This article mainly introduces four methods of GUID generation format in C#. Friends who need it can refer to the generation and format of GUID in C# 1. GUID is a structure (struct) body under the System namespace, as shown below Example. (1) Create a GUID helper class (GUIDHelper) using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace WebDemo.guid
{
public class GuIdHelper
{
///
1. C# Sample code sharing for four methods of GUID generation format
Introduction: This article mainly introduces four methods of GUID generation format in C#. Friends in need can refer to
2. C#Basic knowledge arrangement: Basic knowledge (4) Inheritance
##Introduction: Conventional type formatting The format() method of the String class is used to create formatted strings and connect multiple string objects. Students who are familiar with C language should remember the sprintf() method of C language. There are similarities between the two. The format() method has two overloaded forms. format(String format, Object... args) New string uses the locale, specifying the string format and parameters to generate a formatted new string. format(Locale
3. java placeholder application
##4. Summary of how to import and export Excel documents using PHP
Introduction: Recently, due to project needs, a module needs to be developed using PHP I exported some data in the system to Excel, modified it, and then imported it back into the system. I took the opportunity to do some research on this, and here is some summary. Basically, there are two types of exported files: 1: Excel-like format. This is actually not an Excel file in the traditional sense. It is just because Excel has strong compatibility and can be opened correctly. After modifying this kind of file and then saving it, you will usually be prompted whether you want to convert it to an Excel file. Advantages: Simple. Disadvantages: It is difficult to generate the format. If it is used for import,
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