DateStr2Num_debuging

代码说明：

  日期转换的程序。可将字符型日期转换为数值型。增加了一种常用日期编码格式。建议将其作为mex使用，速度有显著提高。(Date conversion process. Date can be converted to a numeric character. Added a common date code format. Recommend its use as a mex, the speed has improved significantly.)