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private void setbin()
/// <summary>
/// 截取字符串
/// </summary>
/// <param name="str"></param>
/// <param name="length"></param>
/// <returns></returns>
public static string SubString(string SoucreStr, int len)
{
string result = SoucreStr;
if (SoucreStr.Length >= len)
{
result = SoucreStr.Substring(0, len);
}
return result;
}
/// <summary>
/// 从第几位截取几个字符串
/// </summary>
/// <param name="str"></param>
/// <param name="begin"></param>
/// <param name="length"></param>
/// <returns></returns>
public static string SubString(string str, int begin, int length)
{
if (str.Length < begin)
{
return "";
}
if (length >= str.Length - begin)
{
length = str.Length - begin;
}
return str.Substring(begin, length);
}