/// <summary>
/// 格式化where表达式，针对不同数据库的参数关键词的处理
/// </summary>
/// <param name="fieldName"></param>
/// <param name="compareChar"></param>
/// <param name="paramName"></param>
public virtual string FormatExpression(string fieldName, string compareChar = "", string paramName = "")
{
return(SqlParamHelper.FormatFilterParam(fieldName, compareChar, paramName));
}
