找出最长及最短字符串.练习字符串处理: 编写程序,由键盘输入若干字符串,输出最长及最短的字符串。-To find out the longest and the shortest string. Practice string processing: preparation of procedures, a number of strings from the keyboard input, output and the longest and shortest strings.

Unix/Linx 系统中所有时间相关的处理函数的总结(包括获取设置系统时间,带时区不带时区时间以及不同格式的时间字符串)-Unix/Linx system processing functions all the time-related summary (including access to set the system time with time zone with no time zone and time strings in different formats)

用于批量替换源码工程里面字符串，比如说生成的绝对路径-Batch replace strings in source code project, for example, to generate the absolute path.