[C#] 纯文本查看 复制代码
/// <summary>
/// 替换变量
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public static string replaceBianLiang(string content)
{
content = content.Replace("{当前时间}", DateTime.Now.TimeOfDay.ToString());
string[] bianliang = new string[] { "{随机字母}", "{随机数字}", "{随机汉字}" };
Regex r;
int count;
string readstr="";
foreach(string str in bianliang){
count = (content.Length - content.Replace(str, "").Length) / str.Length;
if (str == "{随机汉字}") readstr = RandChina(count);
if (str == "{随机数字}") readstr = GenerateCheckCodeNum(count);
if (str == "{随机字母}") readstr = GenerateRandomNumber(count);
if (count > readstr.Length) count = readstr.Length;
r = new Regex(str.Replace("{", "\\{").Replace("}", "\\}"));
for (int i = 0; i < count;i++ )
{
content = r.Replace(content, readstr.Substring(i,1), 1);
}
}
return content;
}
/// <summary>
/// 随机生成字符串
/// </summary>
/// <param name="Length"></param>
/// <returns></returns>
public static string GenerateRandomNumber(int Length)
{
StringBuilder newRandom = new StringBuilder(62);
Random rd = new Random();
for (int i = 0; i < Length; i++)
{
newRandom.Append(constant[rd.Next(62)]);
}
return newRandom.ToString();
}
/// <summary>
/// 随机生成数字
/// </summary>
/// <param name="codeCount"></param>
/// <returns></returns>
public static string GenerateCheckCodeNum(int codeCount)
{
int rep = 0;
string str = string.Empty;
long num2 = DateTime.Now.Ticks + rep;
rep++;
Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep)));
for (int i = 0; i < codeCount; i++)
{
int num = random.Next();
str = str + ((char)(0x30 + ((ushort)(num % 10)))).ToString();
}
return str;
}
/// <summary>
/// 此函数为生成指定数目的汉字
/// </summary>
/// <param name="charLen">汉字数目</param>
/// <returns>所有汉字</returns>
public static string RandChina(int charLen)
{
int area, code;//汉字由区位和码位组成(都为0-94,其中区位16-55为一级汉字区,56-87为二级汉字区,1-9为特殊字符区)
StringBuilder strtem = new StringBuilder();
Random rand = new Random();
for (int i = 0; i < charLen; i++)
{
area = rand.Next(16, 88);
if (area == 55)//第55区只有89个字符
{
code = rand.Next(1, 90);
}
else
{
code = rand.Next(1, 94);
}
strtem.Append(Encoding.GetEncoding("GB2312").GetString(new byte[] { Convert.ToByte(area + 160), Convert.ToByte(code + 160) }));
}
return strtem.ToString();
}