ABAP中如何检查字母数字类型(alpha numeric)的变量
Business requirment经常要求某个ID的值只能包含26个字母和10个数字字符,这就要求ABAP程序能够检查相应变量内容,辨别特殊字符。sap-img上的一个例子提供了这样的功能: REPORT ZCHECK_ALPHA_NUMERIC. * Declare the variable * For Length data: serial_length type i. * For Alpha numeric data: str type string. data: valid_characters type string. * Fill in those valid characters you need to check concatenate ‘0123456789’ ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’ ‘abcdefghijklmnopqrstuvwxyz’ into valid_characters. * User Input parameters testchar(10) default ‘12345abc’. * Get User Input str […]