/// <summary>
/// 将对象转换成int类型,转换失败将返回defValue
/// </summary>
/// <param name="Expression"></param>
/// <param name="defValue"></param>
/// <returns></returns>
public static int StrToInt(object Expression, int defValue)
{
if (Expression == null)
{
return(defValue);
}
string input = Expression.ToString().Trim();
//是小数的情况,先转成decimal
if (input.IndexOf(".") != -1)
{
input = TryParse.StrToDecimal(Expression).ToString("f0");
}
if (((input.Length <= 0) || (input.Length > 11)) || !Regex.IsMatch(input, @"^[-]?\d*[.]?\d*$"))
{
return(defValue);
}
if (((input.Length >= 10 && (input[0] != '1' && input[0] != '2')) || (input.Length >= 10 && input[0] == '-' && input[1] != '1' && input[1] != '2')))
{
return(defValue);
}
try
{
return(Convert.ToInt32(input));
}
catch
{
return(defValue);
}
}
/// <summary>
/// 取两数相减结果
/// </summary>
/// <param name="val1"></param>
/// <param name="val2"></param>
/// <param name="defValue"></param>
/// <returns></returns>
public static decimal NumberMinus(object val1, object val2, decimal defValue)
{
decimal value = TryParse.StrToDecimal(val1) - TryParse.StrToDecimal(val2);
if (value < 0m)
{
return(defValue);
}
return(value);
}
/// <summary>
/// 取两数相除结果,除数为0返回0
/// </summary>
/// <param name="val1"></param>
/// <param name="val2"></param>
/// <returns></returns>
public static decimal NumberDivide(object val1, object val2)
{
if (TryParse.StrToDecimal(val2) == 0)
{
return(0);
}
decimal value = TryParse.StrToDecimal(val1) / TryParse.StrToDecimal(val2);
return(value);
}