/// <summary>
/// 截取字符串 超长 用冒号显示
/// </summary>
/// <param name="sString"></param>
/// <param name="nLeng"></param>
/// <returns></returns>
public static string SubStr(string sString, int nLeng)
{
if (sString.Length <= nLeng)
{
return sString;
}
string sNewStr = sString.Substring(0, nLeng);
sNewStr = sNewStr + "...";
return sNewStr;
}
/// <summary>
/// 截取字符串 超长 换行
/// </summary>
/// <param name="sString"></param>
/// <param name="nLeng"></param>
/// <returns></returns>
public static string SubStrWrap(string sString, int nLeng)
{
string sNewStr = sString.Substring(0, nLeng);
StringBuilder builder = new StringBuilder();
if (sString.Length <= nLeng)
{
return sString;
}
else
{
for (int i = 0, j = 0; i < sString.Length; i++)
{
builder.Append(sString[i]);
if (sString.Substring(j, i - j + 1).Length >= nLeng)
{
builder.AppendLine();//超出，换行
j = i + 1;
}
}
sNewStr = builder.ToString();
}
return sNewStr;
}
/// <summary>
/// 分割字符串
/// </summary>
/// <param name="source">源字符串</param>
/// <param name="split">分割的字符</param>
/// <param name="number">要分割后的第几个， 从左往右1开始</param>
/// <returns></returns>
public static string Compose(string source, char split, int number)
{
string[] sArray = source.Split(split);
string result = "";
int i = 0;
foreach(var s in sArray)
{
if (i == number)
{
result = s;
break;
}
i++;
}
return result;
}