十进制正整数转换成六十二进制互转代码,CSharp代码库,德仔网

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【CSharp】十进制正整数转换成六十二进制互转

作者:Dezai.CN / 发布于2013/6/13/ 645


	/// <summary>
	 /// 十进制正整数转换成六十二进制
	 /// </summary>
	 /// <param name="Number">需要转换的数字Int64格式，不能为负数</param>
	 /// <param name="toBase">转换基数，必须是2至62以内</param>
	 /// <returns>自定义的进制字符串</returns> ///
	 public static String toDectoStr62(Int64 Number, Int32 toBase)
	 {
	 String str62 = "",
	 Digits62 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	 Int64 result = Number;
	 if (Number > 0)
	 { while (result > 0)
	 {
	 Int32 val = toInt32(result % toBase);
	 str62 = String.Format("{0}{1}", Digits62[val], str62);
	 result = (Int64)(result / toBase);
	 }
	 return str62;
	 }
	 return "0";
	 }
	 /// <summary>
	 /// 六十二进制转换成十进制正整数
	 /// </summary>
	 /// <param name="str62">自定义的进制字符串</param>
	 /// <param name="toBase">转换基数，必须是2至62以内</param>
	 /// <returns>返回Int64</returns>
	 public static Int64 toDectoStr62(String str62, Int32 toBase)
	 {
	 String Digits62 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	 int length = str62.Length;
	 Int64 result = 0;
	 for (int i = 0; i < length; i++)
	 {
	 Int64 val = (Int64)Math.Pow(toBase, (length - i - 1));
	 Int64 tmp = Digits62.IndexOf(str62[i]);
	 result += tmp * val;
	 }
	 return result;
	 }

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　六十二进制互转　

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