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feat: ✨ 转36进制 (#38)

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Co-authored-by: tk <fiyne1a@dingtalk.com>
This commit is contained in:
nsnail
2025-06-28 11:45:36 +08:00
committed by GitHub
parent 0a9f93c5d3
commit 4aee3cd210
2 changed files with 49 additions and 31 deletions
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18
src/backend/NSExt/Extensions/LongExtensions.cs
View File

@@ -5,6 +5,8 @@ namespace NSExt.Extensions;
/// </summary>
public static class LongExtensions
{
private const string _CHARS_36 = "0123456789abcdefghijklmnopqrstuvwxyz";
/// <summary>
/// 判断枚举是否包含某个位
/// </summary>
@@ -24,6 +26,22 @@ public static class LongExtensions
return new Random(Guid.NewGuid().GetHashCode()).NextInt64(me[0], me[1]);
}
/// <summary>
/// 转36进制
/// </summary>
public static string Sys36(this long me)
{
var ret = new StringBuilder();
while (me > 35)
{
_ = ret.Insert(0, _CHARS_36[(int)(me % 36)]);
me /= 36;
}
_ = ret.Insert(0, _CHARS_36[(int)me]);
return ret.ToString();
}
/// <summary>
/// 1970毫秒数转换成日期对象
/// </summary>

62
src/backend/NSExt/Extensions/StringExtensions.cs
View File

@@ -14,7 +14,7 @@ namespace NSExt.Extensions;
/// </summary>
public static partial class StringExtensions
{
private const string _CHARACTERS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
private const string _CHARS_62 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
private static readonly Regex _regexIpV4 = RegexIpV4();
/// <summary>
@@ -51,15 +51,43 @@ public static partial class StringExtensions
return decrypted.HexDe();
}
/// <summary>
/// 将指定的输入字符串进行Base62编码
/// </summary>
public static string Base62(this string me)
{
// Convert string to byte array
var bytes = Encoding.UTF8.GetBytes(me);
// Convert byte array to BigInteger for easier processing
var bigInteger = new BigInteger(bytes);
if (bigInteger == 0)
{
return _CHARS_62[0].ToString();
}
var result = new StringBuilder();
while (bigInteger > 0)
{
var remainder = (int)(bigInteger % 62);
bigInteger /= 62;
_ = result.Insert(0, _CHARS_62[remainder]);
}
return result.ToString();
}
/// <summary>
/// 将指定的输入字符串进行Base62解码
/// </summary>
/// <exception cref="ArgumentException">ArgumentException</exception>
public static string Base62Decode(this string me)
public static string Base62De(this string me)
{
BigInteger result = 0;
foreach (var index in me.Select(c => _CHARACTERS.IndexOf(c)))
foreach (var index in me.Select(c => _CHARS_62.IndexOf(c)))
{
if (index < 0)
{
@@ -81,34 +109,6 @@ public static partial class StringExtensions
return Encoding.UTF8.GetString(bytes);
}
/// <summary>
/// 将指定的输入字符串进行Base62编码
/// </summary>
public static string Base62Encode(this string me)
{
// Convert string to byte array
var bytes = Encoding.UTF8.GetBytes(me);
// Convert byte array to BigInteger for easier processing
var bigInteger = new BigInteger(bytes);
if (bigInteger == 0)
{
return _CHARACTERS[0].ToString();
}
var result = new StringBuilder();
while (bigInteger > 0)
{
var remainder = (int)(bigInteger % 62);
bigInteger /= 62;
_ = result.Insert(0, _CHARACTERS[remainder]);
}
return result.ToString();
}
/// <summary>
/// base64编码
/// </summary>