Title: [Tutorial] Several topics for personal description files Sending station: BBS Shuimu Tsinghua Station Sun Feb 23 00:19:36 2003, forwarded The following instructions are based on Shuimu Tsinghua BBS as an example. Other BBS may have differences. What is a personal description file? A personal description file appears after a string of personal information when querying netizens. It is similar to the signature file, both are more personalized, but it has more room for display than the signature file. 16 lines, half the screen, is generally enough to perform But sometimes I still feel bad. I want to display the description file in full screen, which requires special processing as follows. Explain separately The first is *[2J. Its function is to clear the characters on the screen and move the cursor to the upper left corner. You are now After you have the foundation for full-screen display, you can write your own description file. Then came another problem. The description file only has 16 lines, while the full screen has 24 lines. Simply write the description directly. The file will feel half-assed and unsightly, so we need the following four control symbols. *[A *[B *[C *[D They can control the movement of the cursor relative to the current position of the cursor *[A is to move down one line *[B is to move up One row *[C means moving one column to the right *[D means moving one column to the left. If you need to move more than one row or column, you can Add numbers in front of letters. For example, if you move up 3 lines, write *[3B With these four control characters, we can write content that appears in two or more lines in one line. Specifically I won’t write any examples. Please try it out for yourself. In this way, after appropriate adjustments, you can write an obvious example in 16 lines. Displayed as a full-screen help file But there is a problem with the full-screen description file. Some information about this person cannot be seen. Although you can Judging from the queries in the chat room, some people like to hide. Some people don’t like to hide. Don’t like to hide. For people like me, you can check to see what my description file looks like. If you want to draw it, it may be displayed in full screen. Of course, you can use the method mentioned above to realize the description file. Do not *[2J clear the screen. Also pay attention to the first line of the It's better not to draw anything, but there is still a little problem here. I don’t know if you have noticed that the number of rows of personal information displayed is different when online and offline. So There is a difference in the location of the help file displayed when you are online and when you are not online. At this time, you need a new control symbol. *[m,nH This is the control character for the absolute positioning of the cursor. Position it at the m-th row and the n-th column. With it, you can precisely Correctly control the display of your documentation, and the problem mentioned above will be solved. There are many applications for the control characters introduced above, such as fancy nicknames and signatures exceeding 6 lines. You can summarize the specific methods of simplifying complex code by yourself. I may also talk about it if I have the opportunity. Mastered code *[2J *[A *[B *[C *[D *[m,nH