DigitalFactory/Admin.NET/Admin.NET.Application/Utils/CodeHelper.cs

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// 此源代码遵循位于源代码树根目录中的 LICENSE 文件的许可证

using Admin.NET.Application.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Admin.NET.Application.Utils;
internal class CodeHelper
{
    //      '序号',
    //'随机数',
    //'固定字符串',
    //'随机字母数字',
    //'随机大小写字母',
    //'随机大写字母',
    //'随机小写字母',
    public static string GetCodeRandom(int codeLen)
    {
        var result = "";
        var format = "";
        var max = "";
        for (int i = 0; i < codeLen; i++)
        {
            format += "0";
            max += "9";
        }

        var random = new Random();
        result = random.Next(Convert.ToInt32(max)).ToString(format);
        return result;
    }
    public static string GetCodeLetterNum(int codeLen)
    {
        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        Random random = new Random();
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < codeLen; i++)
        {
            stringBuilder.Append(chars[random.Next(chars.Length)]);
        }
        return stringBuilder.ToString();
    }
    public static string GetCodeLetter(int codeLen)
    {
        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
        Random random = new Random();
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < codeLen; i++)
        {
            stringBuilder.Append(chars[random.Next(chars.Length)]);
        }
        return stringBuilder.ToString();
    }

    public static string GetCode(string? barCode, string? qrCode)
    {
        var code = string.IsNullOrEmpty(barCode) ? qrCode : barCode;
        if (!string.IsNullOrEmpty(code) && code.Contains("?code="))
        {
            code = code.Split('=').LastOrDefault();
        }
        return code;
    }
    public static string GetCodeUpLetter(int codeLen)
    {
        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
        Random random = new Random();
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < codeLen; i++)
        {
            stringBuilder.Append(chars[random.Next(chars.Length)]);
        }
        return stringBuilder.ToString();
    }
    public static string GetCodeDownLetter(int codeLen)
    {
        const string chars = "abcdefghijklmnopqrstuvwxyz";
        Random random = new Random();
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < codeLen; i++)
        {
            stringBuilder.Append(chars[random.Next(chars.Length)]);
        }
        return stringBuilder.ToString();
    }
}