自己写的字符串处理函数库，包括反序、将数字按英文方式分隔输出、将数字转换成大写中文、将低于一万亿范围内数字转换成正确的大写人民币读写模式-the string processing library, write by myself. including reverse the strings　order, separated the digital every 3 bits with a comma , translate the numeric characters to traditional Chinese, digit less than a trillion convert into the correct capitalization of RMB ......