1.unix时间转换为datetime
#region unix时间转换为datetime
/// <summary>
/// unix时间转换为datetime
/// </summary>
/// <param name="timeStamp">string</param>
/// <returns>DateTime</returns>
public static DateTime UnixTimeToTime(string timeStamp)
{
DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
long lTime = long.Parse(timeStamp + "0000000");
TimeSpan toNow = new TimeSpan(lTime);
return dtStart.Add(toNow);
}
#endregion
2.datetime转换为unixtime
#region datetime转换为unixtime
/// <summary>
/// datetime转换为unixtime
/// </summary>
/// <param name="time">DateTime</param>
/// <returns>int</returns>
public static int ConvertDateTimeInt(System.DateTime time)
{
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
return (int)(time - startTime).TotalSeconds;
}
#endregion
3.从字符串里随机得到，规定个数的字符串
#region 从字符串里随机得到，规定个数的字符串
/// <summary>
/// 从1-9、a-z随机得到，规定个数的字符串.
/// </summary>
/// <param name="CodeCount">个数</param>
/// <returns>随机字符串</returns>
public static string GetRandomCode(int CodeCount)
{
string allChar = "1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
string[] allCharArray = allChar.Split(',');
string RandomCode = "";
int temp = -1;
Random rand = new Random();
for (int i = 0; i < CodeCount; i++)
{
if (temp != -1)
{
rand = new Random(temp * i * ((int)DateTime.Now.Ticks));
}
int t = rand.Next(allCharArray.Length - 1);
while (temp == t)
{
t = rand.Next(allCharArray.Length - 1);
}
temp = t;
RandomCode += allCharArray[t];
}
return RandomCode;
}
4.html转换
/// <summary>
/// 转换成 HTML code
/// </summary>
/// <param name="str">string</param>
/// <returns>string</returns>
public static string Encode(string str)
{
str = str.Replace("&", "&");
str = str.Replace("'", "''");
str = str.Replace("\"", """);
str = str.Replace(" ", " ");
str = str.Replace("<", "<");
str = str.Replace(">", ">");
str = str.Replace("\n", "<br>");
return str;
}
/// <summary>
///解析html成 普通文本
/// </summary>
/// <param name="str">string</param>
/// <returns>string</returns>
public static string Decode(string str)
{
str = str.Replace("<br>", "\n");
str = str.Replace(">", ">");
str = str.Replace("<", "<");
str = str.Replace(" ", " ");
str = str.Replace(""", "\"");
return str;
}
5.人民币大写转化
/// <summary>
/// 一个重载，将字符串先转换成数字在调用CmycurD(decimal num)
/// </summary>
/// <param name="num">用户输入的金额，字符串形式未转成decimal</param>
/// <returns></returns>
public static string CmycurD(string numstr)
{
try
{
decimal num = Convert.ToDecimal(numstr);
return CmycurD(num);
}
catch
{
return "非数字形式！";
}
}
/// <summary>
/// 转换人民币大小金额
/// </summary>
/// <param name="num">金额</param>
/// <returns>返回大写形式</returns>
public static string CmycurD(decimal num)
{
string str1 = "零壹贰叁肆伍陆柒捌玖"; //0-9所对应的汉字
string str2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; //数字位所对应的汉字
string str3 = ""; //从原num值中取出的值
string str4 = ""; //数字的字符串形式
string str5 = ""; //人民币大写金额形式
int i; //循环变量
int j; //num的值乘以100的字符串长度
string ch1 = ""; //数字的汉语读法
string ch2 = ""; //数字位的汉字读法
int nzero = 0; //用来计算连续的零值是几个
int temp; //从原num值中取出的值
num = Math.Round(Math.Abs(num), 2); //将num取绝对值并四舍五入取2位小数
str4 = ((long)(num * 100)).ToString(); //将num乘100并转换成字符串形式
j = str4.Length; //找出最高位
if (j > 15) { return "溢出"; }
str2 = str2.Substring(15 - j); //取出对应位数的str2的值。如：200.55,j为5所以str2=佰拾元角分
//循环取出每一位需要转换的值
for (i = 0; i < j; i++)
{
str3 = str4.Substring(i, 1); //取出需转换的某一位的值
temp = Convert.ToInt32(str3); //转换为数字
if (i != (j - 3) && i != (j - 7) && i != (j - 11) && i != (j - 15))
{
//当所取位数不为元、万、亿、万亿上的数字时
if (str3 == "0")
{
ch1 = "";
ch2 = "";
nzero = nzero + 1;
}
else
{
if (str3 != "0" && nzero != 0)
{
ch1 = "零" + str1.Substring(temp * 1, 1);
ch2 = str2.Substring(i, 1);
nzero = 0;
}
else
{
ch1 = str1.Substring(temp * 1, 1);
ch2 = str2.Substring(i, 1);
nzero = 0;
}
}
}
else
{
//该位是万亿，亿，万，元位等关键位
if (str3 != "0" && nzero != 0)
{
ch1 = "零" + str1.Substring(temp * 1, 1);
ch2 = str2.Substring(i, 1);
nzero = 0;
}
else
{
if (str3 != "0" && nzero == 0)
{
ch1 = str1.Substring(temp * 1, 1);
ch2 = str2.Substring(i, 1);
nzero = 0;
}
else
{
if (str3 == "0" && nzero >= 3)
{
ch1 = "";
ch2 = "";
nzero = nzero + 1;
}
else
{
if (j >= 11)
{
ch1 = "";
nzero = nzero + 1;
}
else
{
ch1 = "";
ch2 = str2.Substring(i, 1);
nzero = nzero + 1;
}
}
}
}
}
if (i == (j - 11) || i == (j - 3))
{
//如果该位是亿位或元位，则必须写上
ch2 = str2.Substring(i, 1);
}
str5 = str5 + ch1 + ch2;
if (i == j - 1 && str3 == "0")
{
//最后一位（分）为0时，加上“整”
str5 = str5 + '整';
}
}
if (num == 0)
{
str5 = "零元整";
}
return str5;
}