修改文本文档中数字



文本文档有固定的格式，类似歌词文件，每一行中有文本和数字，代码仅读取尾部的8个字符，转换成数字，然后进行加减操作，同时完成时分秒的进位。-Modify the numbers in a text document. The text has a fixed format, like lyrics, numbers exist in each line, this code only reads trailing eight characters and converts to digits, and then addition and subtraction operations, while simultaneously carry every minute of .